Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
dang trong » dung trong, dong trong, lang trong
hoc thieu » toc thieu, hoc hien
tran tuan » tran xuan, tran quang, tran thanh
tuan dang » tran dang, tuan bang, tuan dung
trong van » trong cac
so lieu » so dieu
ban tap » bai tap, han tap, ban tai

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) or (so lieu)) tinh - thanh tran tuan dang trong van ban tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (so lieu)) tinh - thanh tran tuan dang trong van ban tap*.