Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huu nhan vo snippets" » "huu han vo snippets", "cuu nhan vo snippets", "huu nha vo snippets", "huu nhan va snippets", "huu nhan mo snippets", "huu than vo 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 nhan vo 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 nhan vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huu nhan vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huu nhan vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.