Perhaps you should try some spelling variations:
tranh chap » tranh cua, trinh chat
chieu sang » chieu sach, chieu xanh, hieu lang
hieu manh » chieu xanh, hieu nganh, dieu hanh
tinh dinh » trinh dinh, tinh ninh, tinh binh
hang cong » dang cong, hang nong, bang cong
tac tranh » tac thanh, tap tranh, sach tranh
cong tac » cong ty
dinh va » dinh van, dinh ve, tinh va
va hang » van hang, va nang, va lang

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 manh) or (chieu sang)) - tinh dinh va hang cong tac tranh chap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu sang)) - tinh dinh va hang cong tac tranh chap*.