Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat song, thuat lanh
hieu van » hieu va, thien van, lieu va
cham duc » pham duc, cham soc, pham duy
sang tao » hang tai
van cham » van chat, van tham, va cham
cua tre » cuu tre, cua triet, dua tren
anh cua » manh cua, hanh cua, canh cua
van anh » van thanh, tuan anh, van minh
duc van » duc va, duc tan, duc manh
su sach » so sach, vu sach
tao hoi » tao khoi, tao boi, tay hoi
ky sang » ky nang, ky dang, ky tang
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (thuat san)) ky sang tao hoi. hieu van cham duc van anh cua ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (thuat san)) ky sang tao hoi. hieu van cham duc van anh cua ((cua tre) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (thuat san)) ky sang tao hoi. hieu van cham duc van anh cua ((cua tre) OR (cua te))*".