Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"than vo chu snippets" » "than va chu snippets", "than doc chu snippets", "than hoc chu snippets", "than vo nhu snippets", "than co chu 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 vo chu 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 vo chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( than vo chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("than vo chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.