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