Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gap dao voi snippets" » "gap do voi snippets", "tap dao voi snippets", "giay dao voi snippets", "gap da voi snippets", "gap dao noi 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: (((("gap dao 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: (((("gap dao voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gap dao voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gap dao voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.