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