Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
thanh tung » thanh cong
hoc thieu » toc thieu, hoc hien
tung tuan » trung tuan, hung tuan, quang tuan
tuan dong » tuan duong, quan dong, luan dong
dong cong » duong cong, dung cong, dang cong
tan toan » tap toan, van toan, dan toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu tinh - thanh tung tuan dong cong ((tan toan) or (tan tran)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - thanh tung tuan dong cong ((tan toan) OR (tan tran)) ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - thanh tung tuan dong cong ((tan toan) or (tan tran)) ban*.