Perhaps you should try some spelling variations:
thien tinh » khien tinh, tien tinh, trien tinh
thien minh » tien minh, trien minh, thien chinh
hanh trung » thanh trung, hanh trang, danh trung
manh trung » manh tung, thanh trung, manh hung
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
dang cong » dung cong
cap dang » cao dang, cac dang, cap bang
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 ((thien tinh) OR (thien minh)) - ((hanh trung) or (manh trung)) cap dang cong thanh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien tinh) OR (thien minh)) - ((hanh trung) OR (manh trung)) cap dang cong thanh toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien tinh) OR (thien minh)) - ((hanh trung) or (manh trung)) cap dang cong thanh toan ban*".