Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, truong cong
thuong dong » phuong dong, tuong dong, chuong dong
chieu sach » chiet tach, chieu sang, chieu xanh
ngang tuan » quang tuan, hoang tuan, nganh toan
hanh hang » thanh hang, hang hang, hanh han
tuan cu » tuan tu, quan cua, tuan thu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chinh sach) or (chieu sach)) - hanh hang va ((thuong cong) OR (thuong dong)) ngang tuan cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chinh sach) OR (chieu sach)) - hanh hang va ((thuong cong) OR (thuong dong)) ngang tuan cu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chinh sach) or (chieu sach)) - hanh hang va ((thuong cong) OR (thuong dong)) ngang tuan cu".
• Adding a wildcard symbol may retrieve word variants: doi ((chinh sach) or (chieu sach)) - hanh hang va ((thuong cong) OR (thuong dong)) ngang tuan cu*.