Perhaps you should try some spelling variations:
tran thanh » ban thanh, van thanh
quan thanh » ban thanh, van thanh
hoc thieu » toc thieu, hoc hien
doc hieu » toc thieu, hoc hien
tong ban » trong ban, tuong ban, tong van
ban hang » ngan hang
hang mau » hang dau, hang cau, dang mau

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) OR (hoc thieu)) tinh - thanh ((tran thanh) or (quan thanh)) han tong ban hang mau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc thieu)) tinh - thanh ((tran thanh) OR (quan thanh)) han tong ban hang mau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) OR (hoc thieu)) tinh - thanh ((tran thanh) or (quan thanh)) han tong ban hang mau*".