Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huu khi co snippets" » "huu phi co snippets", "huu nghi co snippets", "thuy khi co snippets", "huu khi con snippets", "huu khi cu snippets", "huu khi 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: (((("huu khi co 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 khi co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huu khi co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huu khi co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.