Perhaps you should try some spelling variations:
thuong dong » phuong dong, tuong dong, chuong dong
theo chieu » theo tieu, ho chieu, theo chu
thanh tung » thanh cong
theo chiu » theo chu, thep chiu, treo chu
tung tuan » trung tuan, hung tuan, quang tuan
tong cong » trong cong, cong cong, dung cong
dan phan » doan phan, dan chan, van phan
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chiu) OR (theo chieu)) trach - thanh tung tuan ((thuong dong) or (tong cong)) dan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chiu) OR (theo chieu)) trach - thanh tung tuan ((thuong dong) OR (tong cong)) dan phan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chiu) OR (theo chieu)) trach - thanh tung tuan ((thuong dong) or (tong cong)) dan phan dau".
• Adding a wildcard symbol may retrieve word variants: ((theo chiu) OR (theo chieu)) trach - thanh tung tuan ((thuong dong) or (tong cong)) dan phan dau*.