Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"than luc don snippets" » "nhan luc don snippets", "than duc don snippets", "thanh luu don snippets", "than luc dong snippets", "than luoc don snippets", "than luc doi 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: (((("than luc don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("than luc don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( than luc don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("than luc don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.