Perhaps you should try some spelling variations:
thieu manh » hieu manh, tien manh, trieu minh
hanh trang » thanh trung, canh tranh, hanh trinh
hoc thieu » toc thieu, hoc hien
tong cong » trong cong, cong cong, dung cong
trang va » tran van, hang va
cong san » cong tac
phan cau » phan cac, phan tu, phan lap
phan dau » phan tu, hang dau
va tong » va thong, va tuong, va trong

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 - hanh trang va tong cong san ((phan cau) OR (phan dau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu manh - hanh trang va tong cong san ((phan cau) OR (phan dau))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu manh - hanh trang va tong cong san ((phan cau) OR (phan dau))*.