Perhaps you should try some spelling variations:
thanh tung » thanh cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
tung tuan » trung tuan, hung tuan, quang tuan
tuan hang » tuan hoang, tuan bang, tuan dang
hoc hieu » hoc thieu, hoc hien, doc hieu
nong dan » nong san, nguong dan, huong dan
cong dan » cong san, cong tan, huong dan
toan ban » van ban

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: hoc hieu manh - thanh tung tuan hang ((nong dan) OR (cong dan)) ((toan ban) OR (toan tap))~.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - thanh tung tuan hang ((nong dan) or (cong dan)) ((toan ban) or (toan tap))*.