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