Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, truong thanh
hoc chieu » hoc thieu, hoc hien, hoc dieu
ho chieu » theo chieu, hoc thieu, mot chieu
tinh dan » trinh dan, tinh da, binh dan
toc nung » toc muong, hoc ung, hoc dung
cong tan » cong tac, cong san, cong ty
phan cac » nhan cach, phan dau, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc chieu) or (ho chieu)) tinh - tinh dan toc nung ((cong thanh) or (cong tan)) phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (ho chieu)) tinh - tinh dan toc nung ((cong thanh) OR (cong tan)) phan cac.
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (ho chieu)) tinh - tinh dan toc nung ((cong thanh) or (cong tan)) phan cac*.