Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi mot nghe snippets" » "thi muon nghe snippets", "thi mot nha snippets", "thi so nghe snippets", "thi mo nghe snippets", "tri mot nghe snippets", "thi moi nghe 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: (((("thi mot nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi mot nghe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi mot nghe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi mot nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.