Perhaps you should try some spelling variations:
"dngu java java snippets" » "ngu java java snippets"
"dang sinh java slippers" » "dang dinh java slippers", "khang sinh java slippers", "dang hanh java slippers", "dang trinh java slippers", "dang using java slippers", "dang sinh va slippers", "dang sinh java slippery", "dang sinh 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: (((("dngu java java snippets") or ("dang sinh java slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dngu java java snippets") OR ("dang sinh java slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dngu java java snippets ) or ( dang sinh java slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dngu java java snippets") or ("dang sinh java slippers"))) or ("locating bug code snippets"))*.