Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tuc hat chau snippets" » "tuc ha chau snippets", "tuc lai chau snippets", "tuc hat nhan snippets", "tuc hai chau snippets", "tu hat chau 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: (((("tuc hat chau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tuc hat chau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tuc hat chau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tuc hat chau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.