Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van sinh da snippets" » "van sinh code snippets", "van minh da snippets", "va sinh da snippets", "van dinh da snippets", "van sinh dai snippets", "van sinh dao snippets", "van sinh va 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: (((("van sinh da snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van sinh da snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van sinh da snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van sinh da snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.