Perhaps you should try some spelling variations:
thieu manh » hieu manh, tien manh, chieu xanh
trieu minh » trieu tinh, trien minh, trien kinh
hanh trang » thanh trung, canh tranh, hanh trinh
va trong » va truong, va thong, va tuong
cong san » cong tac
san phan » san pham, van phan, sat phan
phan cau » phan dau, phan cac, phan tu
va tong » va thong, va tuong, va cong

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) OR (trieu minh)) - hanh trang ((va tong) or (va trong)) cong san phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu manh) OR (trieu minh)) - hanh trang ((va tong) OR (va trong)) cong san phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu manh) OR (trieu minh)) - hanh trang ((va tong) or (va trong)) cong san phan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu manh) OR (trieu minh)) - hanh trang ((va tong) or (va trong)) cong san phan cau*.