Perhaps you should try some spelling variations:
"quang khang ke snippets" » "quang khanh ke snippets", "quang thanh ke snippets", "quang khai ke snippets", "quang hang ke snippets", "quang khong ke snippets", "quang khang kho snippets"
"dung java java snippets" » "dung va java 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: (((("quang khang ke snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quang khang ke snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quang khang ke snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quang khang ke snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.