Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
cam tuc » cam tu, nam thuc, dam thuc
va hanh » van hanh, va thanh, va danh
hanh vu » hanh vi, hanh va, hanh tu
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
vu va » vu van, tu va, su va
thiet » thieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach v nang xa hoi. lieu va ((((cam tuc) or (nam thuoc))) or (cam xuc)) va hanh vu va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach v nang xa hoi. lieu va ((((cam tuc) OR (nam thuoc))) OR (cam xuc)) va hanh vu va thiet.
• Adding a wildcard symbol may retrieve word variants: su sach v nang xa hoi. lieu va ((((cam tuc) or (nam thuoc))) or (cam xuc)) va hanh vu va thiet*.