Perhaps you should try some spelling variations:
te sach » toc sach
cac ban » cac dan, cac van, can ban
cuc ban » cua ban, cuu ban, duc ban
hieu ve » hieu va, hieu van
tang ho » tang cho, tung ho, tang ha
ky tang » ky nang, ky dang, kho tang
su sach » so sach, vu sach
cuu tre » cua tre, cau tren, cau treo
ho hoi » hoc hoi, hoa hoi, hoi hoi
ve cac » va cac, vien cac
vi cuu » vi luu, vinh cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (su sach)) ky tang ho hoi. hieu ve cac ((cuc ban) or (cac ban)) hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (su sach)) ky tang ho hoi. hieu ve cac ((cuc ban) OR (cac ban)) hanh vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (su sach)) ky tang ho hoi. hieu ve cac ((cuc ban) or (cac ban)) hanh vi cuu tre*.