Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets"
"hai linh java slippers" » "hai trinh java slippers", "hoai linh java slippers", "thai binh java slippers", "phai sinh java slippers", "hai linh java slippery", "hai linh java grippers"
"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: (((("hai linh java slippers") or ("using java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hai linh java slippers") OR ("using java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai linh java slippers ) or ( using java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai linh java slippers") or ("using java java snippets"))) or ("locating bug code snippets"))*.