Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi hoi toi snippets" » "khi khoi toi snippets", "khi doi toi snippets", "khi hoc toi snippets", "khi hoi tai snippets", "khi hoi thi snippets", "khi hoi doi 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 hoi toi 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 hoi toi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi hoi toi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi hoi toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.