Perhaps you should try some spelling variations:
nhanh chung » nhanh chuong, nhanh chong, nhanh hung
thiet danh » thien danh, thien anh, thien dang
nhung cong » dung cong, thong cong, hang cong
hoc thiet » hoc thieu, hoc thuyet, hoc hien
chung cua » chung cu, dung cua, huong cua
cua nhung » va nhung
cong dan » cong san, cong tan, huong dan
chan cau » can cau, chinh cau, nhanh cau
phan cau » phan dau, phan tu, phan lap
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 danh - nhanh chung cua nhung cong dan ((chan cau) or (((phan cau) OR (phan cac))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thiet danh - nhanh chung cua nhung cong dan ((chan cau) OR (((phan cau) OR (phan cac)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thiet danh - nhanh chung cua nhung cong dan ((chan cau) or (((phan cau) OR (phan cac))))".
• Adding a wildcard symbol may retrieve word variants: hoc thiet danh - nhanh chung cua nhung cong dan ((chan cau) or (((phan cau) OR (phan cac))))*.