Perhaps you should try some spelling variations:
thien danh » thien anh, thien dang, thien thanh
trinh nhan » trinh han, trinh phan, trinh nha
thieu anh » thien anh, chieu xanh, thieu nhi
nhan thuc » nhan luc, dan thuc, toan thuc
thuc dung » thuoc dung, thuy dung, tuc dung
cong tanh » cong thanh, cong tinh, cong danh
cong tan » cong tac, cong san, cong thanh
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 ((thieu anh) OR (thien danh)) - trinh nhan thuc dung ((cong tan) or (cong tanh)) phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu anh) OR (thien danh)) - trinh nhan thuc dung ((cong tan) OR (cong tanh)) phan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu anh) OR (thien danh)) - trinh nhan thuc dung ((cong tan) or (cong tanh)) phan cac".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu anh) OR (thien danh)) - trinh nhan thuc dung ((cong tan) or (cong tanh)) phan cac*.