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