Perhaps you should try some spelling variations:
thuong dong » phuong dong, tuong dong, chuong dong
thuong cong » thong cong, thuong con, truong cong
chieu tinh » trieu tinh, lieu tinh, chau tinh
hieu lang » chieu sang, hieu quang, nhieu tang
hanh dung » thanh dung, anh dung, hanh dong
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap
dung ca » dung cua, dung cac, dung cam

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 lang) or (chieu tinh)) - hanh dung ca ((thuong cong) OR (thuong dong)) dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu lang) OR (chieu tinh)) - hanh dung ca ((thuong cong) OR (thuong dong)) dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((hieu lang) or (chieu tinh)) - hanh dung ca ((thuong cong) OR (thuong dong)) dan toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((hieu lang) or (chieu tinh)) - hanh dung ca ((thuong cong) OR (thuong dong)) dan toan cau*.