Perhaps you should try some spelling variations:
hang tai » hang va, dung tai
hanh tai » thanh tai, han tai, hinh tai
truoc va » truc va, thuoc va, truong va
vu sach » vu bach, su sach, vu khach
cua tre » cua te, cuu tre, cua triet
cao hoi » cau hoi, co hoi, cao hoc
sach v » sach va, sach y, sach 2
ve lam » va lam, se lam, ke lam
v nang » va nang, vu nang, van nang
de lam » da lam, de la, se lam

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach v nang cao hoi. hieu ((ve lam) OR (de lam)) truoc va ((hanh tai) or (hang tai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach v nang cao hoi. hieu ((ve lam) OR (de lam)) truoc va ((hanh tai) OR (hang tai)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach v nang cao hoi. hieu ((ve lam) OR (de lam)) truoc va ((hanh tai) or (hang tai)) cua tre".
• Adding a wildcard symbol may retrieve word variants: vu sach v nang cao hoi. hieu ((ve lam) OR (de lam)) truoc va ((hanh tai) or (hang tai)) cua tre*.