Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuc hieu voi snippets" » "cua hieu voi snippets", "cuc tieu voi snippets", "cuu hieu voi snippets", "cuc hieu moi snippets", "cuc lieu voi snippets", "cuc hieu loi 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: (((("cuc hieu voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuc hieu voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuc hieu voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuc hieu voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.