Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"pha du cuoc snippets" » "pha du code snippets", "pha duoc cuoc snippets", "pha dao cuoc snippets", "pha dau cuoi snippets", "pham duc cuoc snippets", "pham duy cuoc snippets", "phan duc cuoc 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: (((("pha du cuoc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pha du cuoc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( pha du cuoc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pha du cuoc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.