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