Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung cam hoc snippets" » "dung lam hoc snippets", "dung cac hoc snippets", "dung nam hoc snippets", "dung cao hoc snippets", "dung am hoc snippets", "dung cam hoa 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: (((("dung cam 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: (((("dung cam hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cam hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cam hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.