Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cham va moi snippets" » "chat va moi snippets", "pham va moi snippets", "chai va moi snippets", "cham va mot snippets", "cham ve moi snippets", "cham va mo 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: (((("cham va moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cham va moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cham va moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cham va moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.