Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van ha cuoc snippets" » "van va cuoc snippets", "van ca cuoc snippets", "van ha quoc snippets", "van hoa cuoc snippets", "van chat cuoc snippets", "van hanh cuoc 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: (((("van ha cuoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van ha cuoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van ha cuoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van ha cuoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.