Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nao hoi cham snippets" » "nao hoi chuc snippets", "nao hoi chu snippets", "nao toc cham snippets", "nam hoi cham snippets", "tao hoi cham snippets", "nao noi 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: (((("nao hoi 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: (((("nao hoi cham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nao hoi cham snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nao hoi cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.