Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
phuong dan » phuong danh, phuong doan, huong dan
theo hieu » theo chieu, theo tieu, thien hieu
doi chieu » doc hieu, doi chi, ho chieu
trung va » truong va, trung ha, trung tam
trang va » tran van, hang va
dan toan » van toan, dan than, manh toan
toan cau » 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 hieu) or (doi chieu)) lang - thanh ((trung va) OR (trang va)) nhung phuong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo hieu) OR (doi chieu)) lang - thanh ((trung va) OR (trang va)) nhung phuong dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo hieu) or (doi chieu)) lang - thanh ((trung va) OR (trang va)) nhung phuong dan toan cau".
• Adding a wildcard symbol may retrieve word variants: ((theo hieu) or (doi chieu)) lang - thanh ((trung va) OR (trang va)) nhung phuong dan toan cau*.