Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
cua triet » cua viet, su triet, va triet
va thanh » gia thanh, va tinh, le thanh
ky lang » ky nang, ky tang, tay lang
ky dang » ky nang, ky danh
hieu va » lieu va, hieu qua
moi cua » hoi cua, doi cua, moi quan
te sac » te sach, te cac, te san
va cam » va cham, va cac, va cao
cam tu » cam thu, nam tu, dam tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ((ky lang) OR (ky dang)) xa hoi. hieu va cam tu ((va thanh) OR (ban thanh)) moi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ((ky lang) OR (ky dang)) xa hoi. hieu va cam tu ((va thanh) or (ban thanh)) moi cua triet~".
• Adding a wildcard symbol may retrieve word variants: te sac ((ky lang) OR (ky dang)) xa hoi. hieu va cam tu ((va thanh) or (ban thanh)) moi cua triet*.