Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trinh vat ho snippets" » "trinh vat code snippets", "trinh van ho snippets", "trinh luat ho snippets", "sinh vat ho snippets", "trinh vat hoc snippets", "trinh vat co snippets", "trinh vat khoa 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 vat ho 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 vat ho snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( trinh vat ho snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh vat ho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.