Perhaps you should try some spelling variations:
thieu manh » hieu manh, tien manh, trieu minh
hoc thieu » toc thieu, hoc hien
trung cuu » trung cua, truong cua, trung cap
trung cau » trung cap, trung ca, trung can
nong cong » cong cong, tong cong, nang cong
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, than cap
phan dau » phan tu, hang dau

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 manh - thanh ((trung cuu) or (trung cau)) nong cong dan ((than cau) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu manh - thanh ((trung cuu) OR (trung cau)) nong cong dan ((than cau) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu manh - thanh ((trung cuu) or (trung cau)) nong cong dan ((than cau) or (phan dau))*.