Perhaps you should try some spelling variations:
thao khoa » thai khoa, toan khoa, pham khoa
thanh tai » thanh hai, thanh toan, doanh tai
va thanh » gia thanh, ban thanh, va tinh
tao khoi » tao hoi, lao khoa, tao boi
tai cua » thai cua, tai cuc, tri cua
cam duc » cam xuc, cao duc, pham duc
hieu va » lieu va, hieu qua
tu cach » tu cac
su sach » so sach, vu sach
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (su sach)) ky nang ((tao khoi) OR (thao khoa)). hieu va cam duc va thanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (su sach)) ky nang ((tao khoi) OR (thao khoa)). hieu va cam duc va thanh tai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cach) or (su sach)) ky nang ((tao khoi) OR (thao khoa)). hieu va cam duc va thanh tai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (su sach)) ky nang ((tao khoi) OR (thao khoa)). hieu va cam duc va thanh tai cua tre*.