Perhaps you should try some spelling variations:
"hanh java java snippets" » "hanh va java snippets", "hanh java java slippers"
"van hai code snippets" » "van hai con snippets", "van ha code snippets", "van chat code snippets", "van hanh code snippets", "van hai code slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("hanh java java snippets") or ("van hai code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hanh java java snippets") OR ("van hai code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh java java snippets ) or ( van hai code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh java java snippets") or ("van hai code snippets"))) or ("locating bug code snippets"))*.