Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
hanh trung » thanh trung, hanh trang, manh trung
doc hieu » toc thieu, hoc thieu
tuan ung » tuan dung, tuan hung, toan ung
dung anh » dung danh, duong anh, dong anh
tuan ban » tuan bang, luan ban, quang ban
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc hien) or (doc hieu)) manh - hanh trung tuan ung dung anh ((tuan ban) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hien) OR (doc hieu)) manh - hanh trung tuan ung dung anh ((tuan ban) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ((hoc hien) or (doc hieu)) manh - hanh trung tuan ung dung anh ((tuan ban) or (toan ban))*.