Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"than luc cho snippets" » "nhan luc cho snippets", "than duc cho snippets", "thanh luu cho snippets", "than luc cao snippets", "than nuoc cho snippets", "than luat cho 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 cho 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 cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( than luc cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("than luc cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.