Perhaps you should try some spelling variations:
hoc thieu » hoc hien
cong chuc » cong thuc, cong cu, cong cua
dung binh » duong binh, dung ninh, dung vinh
binh phan » binh pham, binh phap, benh 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 binh 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 binh phan cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) tinh - thanh cong chuc van dung binh phan cau*.