Perhaps you should try some spelling variations:
dien viet » tieng viet, trien viet, gian viet
van trinh » van thinh, van tinh, dan trinh
trinh van » trinh han, trinh quan, trinh toan
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
xuc van » duc van, luc van, vuc van
van cua » vang cua, ban cua, dan cua
cua tre » cua te, cuu tre, cua triet

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 ty nang xa hoi. ((hieu ve) or (dien viet)) cam xuc van trinh van cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang xa hoi. ((hieu ve) OR (dien viet)) cam xuc van trinh van cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ty nang xa hoi. ((hieu ve) or (dien viet)) cam xuc van trinh van cua tre*.