Perhaps you should try some spelling variations:
thiet danh » thien danh, thien anh, thien dang
nhanh hung » thanh hung, nhanh hong, nhanh chuong
nhung cong » dung cong, thong cong, hang cong
hoc thiet » hoc thieu, hoc thuyet, hoc hien
cong dan » cong san, cong tan, huong dan
chan cau » phan cau, can cau, chinh cau
hung va » huong va, hung van, hang va

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 danh - nhanh hung va nhung cong dan ((chan cau) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thiet danh - nhanh hung va nhung cong dan ((chan cau) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: hoc thiet danh - nhanh hung va nhung cong dan ((chan cau) or (phan tu))*.