Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu tinh » trieu tinh, lieu tinh, chau tinh
doanh luan » doanh nhan
phuong van » phung van, phong van, phuong lan
tranh cua » doanh cua, manh cua
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: theo chieu tinh - hanh ((tranh cua) or (doanh luan)) bang phuong van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu tinh - hanh ((tranh cua) OR (doanh luan)) bang phuong van toan cao.
• Adding a wildcard symbol may retrieve word variants: theo chieu tinh - hanh ((tranh cua) or (doanh luan)) bang phuong van toan cao*.