Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chun ho doc snippets" » "chu ho doc snippets", "chung hoc doc snippets", "chuan hoa doc snippets", "chun hoa doc snippets", "chun ho duc snippets", "chun co doc 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: (((("chun ho doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chun ho doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chun ho doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chun ho doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.