Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
cua thuong » cua truong, cua phuong, ca thuong
hien sach » dien sach, kien sach, thien hach
hanh manh » hanh mang, lanh manh, hoang manh
van thanh » ban thanh, van tuan
manh cua » doanh cua, ban cua
van tan » van tuan, van ban, van tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien sach - hanh manh cua thuong cong ((tinh toan) or (((van thanh) or (van tan)))) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien sach - hanh manh cua thuong cong ((tinh toan) OR (((van thanh) OR (van tan)))) ban.
• Adding a wildcard symbol may retrieve word variants: hoc hien sach - hanh manh cua thuong cong ((tinh toan) or (((van thanh) or (van tan)))) ban*.