Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java java slippers" » "using data java slippers", "using java java slippery", "using java java grippers"
"khoa doi java snippets" » "hoa doi java snippets", "khoa hoi java snippets", "khoa noi java snippets", "khoa doi va 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: (((("khoa doi java snippets") or ("using java java slippers"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoa doi java snippets") OR ("using java java slippers"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( khoa doi java snippets ) or ( using java java slippers ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoa doi java snippets") or ("using java java slippers"))) or ("locating bugs code snippets"))*.