Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"than te cong snippets" » "than tu cong snippets", "thanh le cong snippets", "than one cong snippets", "than tai cong snippets", "than thi cong snippets", "than thu cong 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 te cong 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 te cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( than te cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("than te cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.