Perhaps you should try some spelling variations:
truc ban » truc dan, truc van, truoc bang
thuc ban » thuoc ban, thu ban, thuc van
thuc dan » thuc hanh, hoc dan, thuc vat
thanh vi » hanh vi, thanh va, thanh ve
cua viet » ca viet, hoa viet, cua vat
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
y nang » ky nang, ly nang, v nang
va cao » va cac, va co, va dao
vi cua » vai cua, di cua

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 y nang xa hoi. hieu va cao ((truc ban) or (((thuc ban) or (thuc dan)))) thanh vi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu va cao ((truc ban) OR (((thuc ban) OR (thuc dan)))) thanh vi cua viet.
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu va cao ((truc ban) or (((thuc ban) or (thuc dan)))) thanh vi cua viet*.