Perhaps you should try some spelling variations:
trinh dai » trinh tai, trinh di, trinh da
hieu viec » nhieu viec, hieu ve, sieu viet
viec cam » viec lam, viec cua, viec va
tinh dai » tinh da, tinh hai, tinh doi
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
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: tu sach ky lang xa hoi. hieu viec cam xuc va ((tinh dai) OR (trinh dai)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky lang xa hoi. hieu viec cam xuc va ((tinh dai) OR (trinh dai)) cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ky lang xa hoi. hieu viec cam xuc va ((tinh dai) OR (trinh dai)) cua tre*.