Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"quang cao code snippets" » "nang cao code snippets", "quang nam code snippets", "quang cao cong snippets", "quang cao de snippets", "quang cfd code snippets"
"anh java java slippers" » "anh va java slippers", "anh java java slippery", "anh java java grippers"

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: (((("anh java java slippers") or ("quang cao code snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh java java slippers") OR ("quang cao code snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( anh java java slippers ) or ( quang cao code snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh java java slippers") or ("quang cao code snippets"))) or ("locating bugs code snippets"))*.