Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"voi nang can snippets" » "voi hang can snippets", "hoi nang can snippets", "voi nhung can snippets", "voi nang cao snippets", "voi nang ban snippets", "voi nang cap 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: (((("voi nang can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("voi nang can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( voi nang can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("voi nang can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.