Perhaps you should try some spelling variations:
thuong cong » thuong con, thuong dong, truong cong
thong cong » trong cong, tong cong, thong thong
ngang tuan » quang tuan, hoang tuan, nganh toan
hanh tran » hanh trang, thanh tran, hanh tram
tran van » luan van
tuan ban » tuan bang, toan ban, luan ban
thai va » thai van
va tinh » may tinh

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "thai va tinh - hanh tran van ((thuong cong) OR (thong cong)) ngang tuan ban~".
• Adding a wildcard symbol may retrieve word variants: thai va tinh - hanh tran van ((thuong cong) OR (thong cong)) ngang tuan ban*.