Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi khoi doc snippets" » "nhi khoa doc snippets", "khi thai doc snippets", "chi khoa doc snippets", "khi khoi oc snippets", "khi khoi dong 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 khoi 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: (((("khi khoi doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi khoi doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi khoi doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.