Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan doan ke snippets" » "chan doan ke snippets", "nhan dan ke snippets", "nhuan doanh ke snippets", "nhan toan ke snippets", "nhan doanh ket 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: (((("nhan doan ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan doan ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan doan ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan doan ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.