Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tieu thi so snippets" » "trieu thi so snippets", "tiep thi so snippets", "tieu thu so snippets", "tieu thi sao snippets", "tieu thi son snippets", "tieu thi mo 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: (((("tieu thi 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: (((("tieu thi so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tieu thi so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tieu thi so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.