Perhaps you should try some spelling variations:
thuong cong » thuong con, thuong dong, truong cong
thuat sach » thuat lanh, thuat san
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, tong cong, thong thong
hoc thuat » hoc thuyet, hoc thuc, hoc chat
dan than » dan chan, ban than, van than
than man » than ma, thanh san, tran manh
luat » luan, xuat

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thuat sach - hanh trinh luat ((thuong cong) OR (thong cong)) dan than man~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thuat sach - hanh trinh luat ((thuong cong) OR (thong cong)) dan than man".
• Adding a wildcard symbol may retrieve word variants: hoc thuat sach - hanh trinh luat ((thuong cong) OR (thong cong)) dan than man*.