Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
cua thuong » cua truong, cua phuong, ca thuong
hoc thiet » hoc thieu, hoc thuyet, hoc hien
thiet anh » thien anh, thuyet anh, thien danh
canh manh » lanh manh, canh tranh, cach mang
manh cua » doanh cua, ban cua
cong san » cong tac
phan cau » phan dau, phan lap, toan cau
phan cac » nhan cach, phan dau, phan lap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thiet anh - canh manh cua thuong cong san ((((phan cau) or (phan tu))) or (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thiet anh - canh manh cua thuong cong san ((((phan cau) OR (phan tu))) OR (phan cac)).
• Adding a wildcard symbol may retrieve word variants: hoc thiet anh - canh manh cua thuong cong san ((((phan cau) or (phan tu))) or (phan cac))*.