Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
thieu manh » hieu manh, tien manh, trieu minh
hoc thieu » toc thieu, hoc hien
manh cua » doanh cua
cong tan » cong tac, cong san, cong thanh
tran cau » tran chau, toan cau, ran cau
tran huu » tran duc
ban cua » ban quan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu manh - lanh ((manh cua) OR (ban cua)) thuong cong tan ((tran cau) OR (tran huu))~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu manh - lanh ((manh cua) or (ban cua)) thuong cong tan ((tran cau) or (tran huu))*.