Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tieu can voi snippets" » "tiep can voi snippets", "dieu can voi snippets", "tiem can voi snippets", "tieu ban voi snippets", "tieu can moi snippets", "tieu cap 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: (((("tieu can 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: (((("tieu can voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tieu can voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tieu can voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.