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