Perhaps you should try some spelling variations:
"quang tran viet slippers" » "quang tuan viet slippers", "quang trung viet slippers", "quang thanh viet slippers", "quang trien viet slippers", "quang gian viet slippers", "quang san viet slippers", "quang tran viet slippery", "quang tran viet 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 tran viet 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 tran viet slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quang tran viet slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quang tran viet slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.