Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tue bieu cua snippets" » "tue sieu cua snippets", "tieu bieu cua snippets", "thue tieu cua snippets", "tue dieu cua snippets", "tue hieu cua snippets", "tue giau cua 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 bieu cua 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 bieu cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tue bieu cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tue bieu cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.