Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"manh so voi snippets" » "anh so voi snippets", "mach so voi snippets", "manh ho voi snippets", "manh som voi snippets", "manh do voi 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: (((("manh so 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: (((("manh so voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( manh so voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("manh so voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.