Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
theo chieu » theo tieu, ho chieu, theo chu
chieu tinh » trieu tinh, lieu tinh, chau tinh
van thanh » ban thanh
sinh cua » manh cua, dinh cuu, sinh va
van tuan » van quan, van ban, anh tuan
ban cua » ban quan

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

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