Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi rong cho snippets" » "khi cong cho snippets", "khi dong cho snippets", "khi long cho snippets", "khi trong cho snippets", "khi luong cho 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 rong cho 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 rong cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi rong cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi rong cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.