Halima - you cna manually input publications into ResearchGate - but you cannot do the same with Google Scholar. It's metric looks for exisiting public domain publications and, even thouhg generous compared to say ISI Web of Science or Scopus, usually only sources journal articles, books, book chapters, theses and official reports. It doesn't include things like conference abstracts which I note a lot of your 'articles' are in ResearchGate. Such sources rarely get cited and don't usually add to your h-index.
It depends on the different algorithms they use. Google Scholar finds new citations to your work on the web. Mainly, as someone reported in a previous post on Researchgate questions: "If some of the citations to your article are not included, chances are that the citing articles are not accessible to Google search robots or are formatted in ways that make it difficult for their indexing algorithms to identify their bibliographic data or references. To fix this, you'll need to identify the specific citing articles with indexing problems and work with the publisher of these articles to make the necessary changes (see our inclusion guidelines for details). For most publishers, it usually takes 6-9 months for the changes to be reflected in Google Scholar; for very large publishers, it can take much longer."
Halima, I had the same problem with my papers in Russian. It might depend from the language and the you publish in. But it was rather easy to add the missing papers into my Google Scholar account manually.