Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hao wang son snippets" » "hao tang son snippets", "chao yang son snippets", "hao quang son snippets", "hao lang son snippets", "hao bang son snippets", "hao dang son 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: (((("hao wang 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: (((("hao wang son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hao wang son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hao wang son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.