Perhaps you should try some spelling variations:
"hang java java slippers" » "hang va java slippers", "hang java java slippery", "hang java java grippers"
"quan cau code snippets" » "quang cao code snippets", "toan cau code snippets", "quan ha code snippets", "quan cau cong snippets", "quan cau de snippets", "quan cfd code snippets"
"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: (((("quan cau code snippets") or ("hang java java slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quan cau code snippets") OR ("hang java java slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quan cau code snippets ) or ( hang java java slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quan cau code snippets") or ("hang java java slippers"))) or ("locating bug code snippets"))*.