Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
trinh va » trinh van, trinh vat, trinh ve
cong tac » cong ty
cong tan » cong san, cong thanh, cong ty
phan cac » nhan cach, phan dau, phan lap
tran va » tran van, trang va, tranh va

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 xanh - canh ((tran va) or (trinh va)) nhung ((cong tac) or (cong tan)) phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh ((tran va) OR (trinh va)) nhung ((cong tac) OR (cong tan)) phan cac.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh ((tran va) or (trinh va)) nhung ((cong tac) or (cong tan)) phan cac*.