Perhaps you should try some spelling variations:
khong cong » thong cong, khong cang, chong cong
hoc thiet » hoc thieu, hoc thuyet, hoc hien
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cua khong » hua khong, cua phuong, cua thuong
ho thiet » hoa thiet, so thiet, hoc thieu
tinh cua » trinh cua, sinh cua, tinh chat
cong tan » cong tac, cong san, cong thanh
tan ban » toan ban, tang ban, van ban
ban cau » bang cau, ban can, van cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho thiet) or (hoc thiet)) tach - hanh tinh cua khong cong tan ban cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho thiet) OR (hoc thiet)) tach - hanh tinh cua khong cong tan ban cau*.