Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu, hoc hien
dang cong » dung cong
trinh va » trinh van, trinh vat, trinh ve
cong san » cong tac
than cau » toan cau, phan cau, than cap
phan cac » nhan cach, phan dau, phan lap
va dang » van dang, va nang, va lang

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 - hanh trinh va dang cong san ((((than cau) or (phan cac))) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh trinh va dang cong san ((((than cau) OR (phan cac))) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh trinh va dang cong san ((((than cau) or (phan cac))) or (phan tu))*.