Perhaps you should try some spelling variations:
thiet thanh » thien thanh, thi thanh, viet thanh
thong cong » trong cong, thong thong, phong chong
hoc thiet » hoc thieu, hoc thuyet, hoc hien
canh manh » lanh manh, canh tranh, cach mang
tong cong » trong cong, cong cong, dung cong
manh cua » doanh cua, ban cua
dan chan » dan gian, dan ca, van chat
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) OR (tong cong)) dan chan cac~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thiet thanh - canh manh cua ((thong cong) OR (tong cong)) dan chan cac".
• Adding a wildcard symbol may retrieve word variants: hoc thiet thanh - canh manh cua ((thong cong) OR (tong cong)) dan chan cac*.