Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"dac cho trinh snippets" » "dac co trinh snippets", "dac tho trinh snippets", "dac cho sinh snippets", "day cho trinh snippets", "danh cho trinh snippets"
"dung java java slippers" » "dung va java slippers", "dung java java slippery", "dung java java grippers"

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: (((("dac cho trinh snippets") or ("dung java java slippers"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dac cho trinh snippets") OR ("dung java java slippers"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dac cho trinh snippets ) or ( dung java java slippers ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dac cho trinh snippets") or ("dung java java slippers"))) or ("locating bugs code snippets"))*.