Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luan anh bo snippets" » "luan danh bo snippets", "tuan anh bo snippets", "lan anh bo snippets", "luan anh co snippets", "luan anh so snippets", "luan anh buoc 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: (((("luan anh bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luan anh bo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luan anh bo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luan anh bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.