Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huu luoc cac snippets" » "muu luoc cac snippets", "huu loc cac snippets", "huu phuoc cac snippets", "huu duoc cac snippets", "huu luoc can snippets", "huu quoc cac 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: (((("huu luoc cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("huu luoc cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huu luoc cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huu luoc cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.