Perhaps you should try some spelling variations:
"quang toan xac snippets" » "quang tuan xac snippets", "quang tran xac snippets", "quang doan xac snippets", "quang toan ban snippets", "quang toan hoc snippets", "quang toan tap snippets"
"dung java java slippers" » "dung va java slippers", "dung java java slippery", "dung java java grippers"
"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: (((("quang toan xac snippets") or ("dung java java slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quang toan xac snippets") OR ("dung java java slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quang toan xac snippets ) or ( dung java java slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quang toan xac snippets") or ("dung java java slippers"))) or ("locating bug code snippets"))*.