Perhaps you should try some spelling variations:
thiet thanh » thien thanh, thi thanh, viet thanh
hoc thiet » hoc thieu, hoc thuyet, hoc hien
canh manh » lanh manh, canh tranh, cach mang
cua thong » cua thuong, cua khong, cua tong
manh cua » doanh cua, ban cua
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
chan cac » phan cac, chon cac, nhan cach

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 thanh - canh manh cua thong ((cong dan) OR (cong tan)) chan cac~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thiet thanh - canh manh cua thong ((cong dan) OR (cong tan)) chan cac".
• Adding a wildcard symbol may retrieve word variants: hoc thiet thanh - canh manh cua thong ((cong dan) OR (cong tan)) chan cac*.