Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"men va chieu snippets" » "men va hieu snippets", "men da chieu snippets", "men va chien snippets", "nen va chieu snippets", "men vi chieu snippets", "gen va chieu snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("men va chieu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("men va chieu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( men va chieu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("men va chieu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.