Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tue tinh son snippets" » "thue tinh son snippets", "tuyen tinh son snippets", "thuy tinh son snippets", "tue tinh toan snippets", "tue dinh so snippets", "tue tinh hoc 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: (((("tue tinh son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tue tinh son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tue tinh son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tue tinh son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.