Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tap cham voi snippets" » "tam cham voi snippets", "tap pham voi snippets", "toc cham voi snippets", "tap cham hoi snippets", "tap cham soc 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: (((("tap cham 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: (((("tap cham voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tap cham voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tap cham voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.