Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
thong cong » trong cong, tong cong, thong thong
trang cua » tranh cua, tang cua, trung cua
hoc hieu » hoc thieu, hoc hien, hoc dieu
doc hieu » toc thieu, hoc thieu, hoc hien
cong tac » cong ty
tac doan » tap doan, tan doan, thai doan
doan cau » toan cau, doan dau, doan cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc hieu) or (doc hieu)) manh - hanh ((trang cua) or (trung tuan)) thong cong tac doan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hieu) OR (doc hieu)) manh - hanh ((trang cua) OR (trung tuan)) thong cong tac doan cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc hieu) or (doc hieu)) manh - hanh ((trang cua) or (trung tuan)) thong cong tac doan cau*.