Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac tinh so snippets" » "dac tinh so snippets", "ha tinh so snippets", "cuu tinh so snippets", "cac tinh son snippets", "cac tinh soc snippets", "cac dinh so 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: (((("cac tinh 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: (((("cac tinh so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac tinh so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac tinh so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.