Perhaps you should try some spelling variations:
quang thuoc » dung thuoc, dang thuoc, quang hoc
nghien cua » nghien cuu, nghiep cua, nghiep vua
chuc nhanh » chuc nganh, chuc hanh, chuoc thanh
cong chuc » cong thuc, cong cu, cong cua
cach mai » bach mai, cach mang, cac bai
van gian » van giang, dan gian, van giao
gian dan » gian lang
tu cach » tu cac
la hoi » lai hoi, le hoi, va hoi

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu cach mai tat, nghien cua cong chuc nhanh quang thuoc ((la hoi) OR (xa hoi)) van gian dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cach mai tat, nghien cua cong chuc nhanh quang thuoc ((la hoi) OR (xa hoi)) van gian dan".
• Adding a wildcard symbol may retrieve word variants: tu cach mai tat, nghien cua cong chuc nhanh quang thuoc ((la hoi) OR (xa hoi)) van gian dan*.