Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
dung cong » dung trong
cong huy » cuong huy, dong huy, cong quy
huy toan » huy tran, huu toan, huy hoang
toan cao » toan ban, toan tap

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 cua) or (trung tam)) dung cong huy toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((trung cua) OR (trung tam)) dung cong huy toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((trung cua) or (trung tam)) dung cong huy toan cao*.