Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tranh doc cua snippets" » "tranh doc code snippets", "tranh duoc cua snippets", "trinh doc cua snippets", "tranh cuoc cua snippets", "tranh hoc cua snippets", "tranh doi cua snippets", "tranh do cua snippets"
"dung java java snippets" » "dung va java 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: (((("dung java java snippets") or ("tranh doc cua snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("tranh doc cua snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( tranh doc cua snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("tranh doc cua snippets"))) or ("locating bug core snippets"))*.