Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
cong tinh » cong trinh, cong vinh, long tinh
cap bang » cao bang, can bang, lap bang
toan cau » toan cao, toan ban, toan tap
can ban » van ban, 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 bang) or (can ban)) cong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh trung ((cap bang) OR (can ban)) cong tinh toan cau*.