Perhaps you should try some spelling variations:
hinh thai » sinh thai, tinh thai, dinh thi
hanh thai » nhanh thai, hanh tai, anh thai
cua tre » cua te, cuu tre, cua triet
ky dung » ly dung, ky dang, ky vung
dung xa » duong xa, dung ha, dong xa
hieu ve » hieu va, hieu van
cam duc » cao duc, pham duc, nam duoc
su tai » su thi, tu tai
tai ky » thai ky, trai ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: su tai ky dung xa hoi. hieu ve ((cam duc) or (cam xuc)) van ((hanh thai) or (hinh thai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su tai ky dung xa hoi. hieu ve ((cam duc) OR (cam xuc)) van ((hanh thai) OR (hinh thai)) cua tre.
• Adding a wildcard symbol may retrieve word variants: su tai ky dung xa hoi. hieu ve ((cam duc) or (cam xuc)) van ((hanh thai) or (hinh thai)) cua tre*.