Perhaps you should try some spelling variations:
thong cong » trong cong, thong thong, phong chong
hieu xanh » chieu xanh, hieu nganh, dieu hanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh tran » hanh trang, thanh tran, hanh tram
tran toan » tranh toan, tran tuan, tran tan
tong cong » trong cong, cong cong, dung cong
van tuan » van quan, van ban, anh tuan
tuan ban » tuan bang, toan ban, luan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu xanh) OR (hieu manh)) - hanh tran toan ((thong cong) or (tong cong)) van tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (hieu manh)) - hanh tran toan ((thong cong) OR (tong cong)) van tuan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu xanh) OR (hieu manh)) - hanh tran toan ((thong cong) or (tong cong)) van tuan ban*".