Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trinh moi de snippets" » "trinh moi code snippets", "trinh hoi de snippets", "trinh boi de snippets", "trinh mo de snippets", "trinh moi den snippets", "trinh moi ve snippets", "trinh moi ke snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("trinh moi de snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh moi de snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( trinh moi de snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh moi de snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.