Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi cay cong snippets" » "khi cac cong snippets", "khi cao cong snippets", "khi cau cong snippets", "khi day cong snippets", "khi gay cong snippets", "khi xay cong 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: (((("khi cay cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khi cay cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi cay cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi cay cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.