Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luc du cua snippets" » "luc du code snippets", "cuc du cua snippets", "luc tu cua snippets", "luc dieu cua snippets", "luc duy cua snippets", "luc dau cua snippets", "luc dum cua 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: (((("luc du cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc du cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( luc du cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc du cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.