Perhaps you should try some spelling variations:
"quang anh data slippers" » "quang hanh data slippers", "quang manh data slippers", "quang thanh data slippers", "quang anh dat slippers", "quang a data slippers", "quang anh ta slippers", "quang anh data slippery", "quang anh data grippers"
"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 anh data slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quang anh data slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quang anh data slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quang anh data slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.