Perhaps you should try some spelling variations:
theo chiet » theo chieu, thep thiet
chiet tach » chieu sach
trung tuan » trung thanh, trung tam, tran tuan
tranh cua » doanh cua, manh cua
tong cong » trong cong, cong cong, dung cong
van van » van ban, san van, van vat
tan van » tran van, tang van, luan van

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: theo chiet tach - hanh ((tranh cua) OR (trung tuan)) tong cong ((van van) OR (tan van)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chiet tach - hanh ((tranh cua) or (trung tuan)) tong cong ((van van) OR (tan van)) cau~".
• Adding a wildcard symbol may retrieve word variants: theo chiet tach - hanh ((tranh cua) or (trung tuan)) tong cong ((van van) OR (tan van)) cau*.