Perhaps you should try some spelling variations:
"hang java java snippets" » "hang va java snippets"
"using bi cong snippets" » "using bird cong snippets", "using ibm cong snippets", "using rbf cong snippets", "using bo cong snippets", "using tai cong snippets", "using thi cong 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: (((("using bi cong snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using bi cong snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using bi cong snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using bi cong snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.