Perhaps you should try some spelling variations:
cua tren » dua tren, ca tren, cua tre
su sach » vu sach
so sach » so sanh, bo sach, co sach
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
tu sach » thu sach, te sach, tu cach
nang o » nang co, nang ho, nang ro
ve cac » va cac, vien cac
xuc va » duc va, tuc va, luc va
di cua » dai cua, doi cua, de cua
o hoi » co hoi, o hoc, o hai

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) or (((su sach) or (so sach)))) ky nang o hoi. hieu ve cac xuc va hanh di cua tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (((su sach) OR (so sach)))) ky nang o hoi. hieu ve cac xuc va hanh di cua tren.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (((su sach) or (so sach)))) ky nang o hoi. hieu ve cac xuc va hanh di cua tren*.