Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
trung chan » trung phan, trung can, trung nhan
trong chan » trong chuan, trong cham, trong can
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
cong huu » cong thuc, cong chuc, duong huu
huu toan » huu tuan, cuu toan, huy toan
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 chan) OR (trong chan)) dung cong huu toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh ((trung chan) OR (trong chan)) dung cong huu toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((trung chan) OR (trong chan)) dung cong huu toan cao*.