Perhaps you should try some spelling variations:
dung phuong » dung thuong, bang phuong, dung chung
chieu tinh » trieu tinh, lieu tinh, chau tinh
phuong dan » phuong danh, phuong doan, huong dan
hieu manh » chieu xanh, hieu nganh, dieu hanh
trung vat » trung van, trong vat, truong van
trung va » truong va, trang va, trung ha
gian cap » gian cac, gian cam, gian cham

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((hieu manh) or (chieu tinh)) - thanh ((trung vat) OR (trung va)) dung phuong dan gian cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu manh) OR (chieu tinh)) - thanh ((trung vat) OR (trung va)) dung phuong dan gian cap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((hieu manh) or (chieu tinh)) - thanh ((trung vat) OR (trung va)) dung phuong dan gian cap*".