Perhaps you should try some spelling variations:
truong quan » trong quan, thong quan, luong quan
thieu xanh » chieu xanh, hieu manh, thien anh
trung tuan » trung thanh, trung tam, tran tuan
hoc thieu » toc thieu, hoc hien
cong tan » cong tac, cong san, cong thanh
tran tap » toan tap, tran tan, tran tuan

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 - thanh ((truong quan) or (trung tuan)) trong cong tan tran tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((truong quan) OR (trung tuan)) trong cong tan tran tap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((truong quan) or (trung tuan)) trong cong tan tran tap*.