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