Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
trong chan » trong chuan, trong cham, trong nhan
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
trong can » trong canh, trong cac, trong ca
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than cau » toan cau, phan cau, than cap

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 ((trong can) OR (trong chan)) thong cong tac than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh ((trong can) OR (trong chan)) thong cong tac than cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((trong can) OR (trong chan)) thong cong tac than cau*.