Perhaps you should try some spelling variations:
trang tuan » tran tuan, trung tuan, trong tuan
trang qua » trong qua, trong quan, trung quan
ho chiet » ho chieu, hoc thiet, hoa thiet
ho thiet » hoc thiet, hoa thiet, so thiet
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
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 chiet) OR (ho thiet)) tach - hanh ((trang qua) or (trang tuan)) trong cong van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chiet) OR (ho thiet)) tach - hanh ((trang qua) OR (trang tuan)) trong cong van toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chiet) OR (ho thiet)) tach - hanh ((trang qua) or (trang tuan)) trong cong van toan cao".
• Adding a wildcard symbol may retrieve word variants: ((ho chiet) OR (ho thiet)) tach - hanh ((trang qua) or (trang tuan)) trong cong van toan cao*.