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