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