Perhaps you should try some spelling variations:
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
dung cong » dung trong
ho nhieu » hop nhieu, ho chieu, hoc thieu
he nhieu » hop nhieu, phu nhieu, he dieu
tinh cua » trinh cua, sinh cua, tinh chat
cua dung » cua dang, cua dong, qua dung
van toan » van tan, van thanh, manh toan
van tuan » van quan, van ban, anh tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho nhieu) or (he nhieu)) tang - nhanh tinh cua dung cong ((van toan) OR (van tuan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho nhieu) OR (he nhieu)) tang - nhanh tinh cua dung cong ((van toan) OR (van tuan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho nhieu) or (he nhieu)) tang - nhanh tinh cua dung cong ((van toan) OR (van tuan)) cau".
• Adding a wildcard symbol may retrieve word variants: ((ho nhieu) or (he nhieu)) tang - nhanh tinh cua dung cong ((van toan) OR (van tuan)) cau*.