Perhaps you should try some spelling variations:
hoc thieu » hoc hien
cong chuc » cong thuc, cong cu, cong cua
dung benh » duong benh, dung menh, trung benh
benh phan » benh nhan, benh phau, kenh phan
chuc van » chu van, chuc va, thuc van
van dung » van dong, xay dung, tin dung
phan cau » phan dau, phan cac, phan tu

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 (toc thieu)) tinh - thanh cong chuc van dung benh phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) tinh - thanh cong chuc van dung benh phan cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) tinh - thanh cong chuc van dung benh phan cau*.