Perhaps you should try some spelling variations:
thanh dam » thanh dat, thanh nam, thanh tam
vu khach » vu khanh, vu khac, vay khach
va thanh » gia thanh, ban thanh, va tinh
su sach » so sach, vu sach
ly nang » ky nang, ly hang, ly vang
hieu ve » hieu va, hieu van
cac luc » cau luc, coc luc, cac nuoc
dam cua » dai cua, day cua, nam cua
cua tre » cua te, cuu tre, cua triet
ve cac » va cac, vien cac
luc va » duc va, tuc va, loc va
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu khach) or (su sach)) ly nang x hoi. hieu ve cac luc va thanh dam cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu khach) OR (su sach)) ly nang x hoi. hieu ve cac luc va thanh dam cua tre.
• Adding a wildcard symbol may retrieve word variants: ((vu khach) or (su sach)) ly nang x hoi. hieu ve cac luc va thanh dam cua tre*.