Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"dan hoc trinh snippets" » "dan doc trinh snippets", "dan hoc tinh snippets", "dan hoc sinh snippets", "van hoc trinh snippets", "dan toc trinh snippets", "dai hoc trinh snippets"
"dung java java slippers" » "dung va java slippers", "dung java java slippery", "dung java java grippers"

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: (((("dan hoc trinh snippets") or ("dung java java slippers"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan hoc trinh snippets") OR ("dung java java slippers"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dan hoc trinh snippets ) or ( dung java java slippers ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan hoc trinh snippets") or ("dung java java slippers"))) or ("locating bugs code snippets"))*.