Perhaps you should try some spelling variations:
"quang tung code snippets" » "quang trung code snippets", "quang dung code snippets", "quang hung code snippets"
"dang java java slippers" » "dang va java slippers", "dang java java slippery", "dang java java grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code 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: (((("dang java java slippers") or ("quang tung code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang java java slippers") OR ("quang tung code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang java java slippers ) or ( quang tung code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang java java slippers") or ("quang tung code snippets"))) or ("locating bug code snippets"))*.