Perhaps you should try some spelling variations:
tuong cua » truong cua, huong cua, thong cua
dung cong » dung trong
ho nhieu » hop nhieu, he nhieu, hoc thieu
ho chieu » theo chieu, hoc thieu, doi chieu
tung cua » trung cua, dung cua, tang cua
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap

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 (ho chieu)) tang - thanh ((tung cua) OR (tuong cua)) dung cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho nhieu) OR (ho chieu)) tang - thanh ((tung cua) OR (tuong cua)) dung cong tan toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho nhieu) or (ho chieu)) tang - thanh ((tung cua) OR (tuong cua)) dung cong tan toan cao*".