Perhaps you should try some spelling variations:
trinh nhan » trinh han, trinh phan, trinh nha
thuc chung » thuc cung, thuc nhung, thung chung
hoc chieu » ho chieu, hoc hien, hoc dieu
hoc thieu » toc thieu, hoc hien
nhan thuc » nhan luc, dan thuc, toan thuc
cong than » cong thanh, cong thang, cong thai
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 chieu) OR (hoc thieu)) xanh - trinh nhan thuc chung ((cong than) or (cong tan)) phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc thieu)) xanh - trinh nhan thuc chung ((cong than) OR (cong tan)) phan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) OR (hoc thieu)) xanh - trinh nhan thuc chung ((cong than) or (cong tan)) phan cac".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) OR (hoc thieu)) xanh - trinh nhan thuc chung ((cong than) or (cong tan)) phan cac*.