Perhaps you should try some spelling variations:
thanh trong » thanh trung, tranh trong, hanh trong
thieu xanh » chieu xanh, hieu manh, thien anh
trong canh » trong anh, trong cach, trong can
canh trong » anh trong, hanh trong, lanh trong
hoc thieu » toc thieu, hoc hien
cong tac » cong ty
than cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh lap, thanh cac

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 canh trong cong tac ((than cau) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh trong canh trong cong tac ((than cau) OR (than cap))*.