Perhaps you should try some spelling variations:
trinh dai » trinh tai, trinh da, trinh dan
hieu viec » nhieu viec, hieu ve, sieu viet
toc sach » hoc sach, doc sach, thuoc sach
tinh hai » tinh thai, tinh chat, trinh han
trinh di » trinh do, trinh dien, trinh dinh
viec cam » viec lam, viec cua, viec va
sach ky » sac ky, sach y, sach ty
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ky lang xa hoi. hieu viec cam xuc va ((tinh hai) or (((trinh dai) or (trinh di)))) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky lang xa hoi. hieu viec cam xuc va ((tinh hai) OR (((trinh dai) OR (trinh di)))) cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sach ky lang xa hoi. hieu viec cam xuc va ((tinh hai) or (((trinh dai) or (trinh di)))) cua tre*.