Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"hieu vu khac snippets" » "hieu va khac snippets", "hieu ve khac snippets", "hieu su khac snippets", "hieu vu kham snippets", "hieu vu khanh snippets", "hieu bui khac snippets", "hieu vu khac slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("hieu vu khac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hieu vu khac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hieu vu khac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu vu khac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.