Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
trung cap » truong cao, trung tam
tran tuan » tran xuan, tran quang, tran thanh
tong cong » trong cong, cong cong, dung cong
cong tinh » cong trinh, cong vinh, long tinh
toan tap » toan ban

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 ((trung cap) or (tran tuan)) tong cong tinh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((trung cap) OR (tran tuan)) tong cong tinh toan tap*.