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