Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
chua tinh » cua tinh, cha tinh, thuat tinh
hanh cua » manh cua, hang cua, hanh sua
sang tao » hang tai
te sach » toc sach
cac tuc » cac toc, cac tu, cac tac
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
tao hoi » tao khoi, tao boi, tay hoi
ky sang » ky nang, ky dang, ky tang
chu tri » chua tri, chu thi, chu tai
ve cac » va cac, vien cac
tuc va » thuc va, truc va, tuc xa

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 (thuat sach)) ky sang tao hoi. hieu ve cac tuc va hanh cua ((chua tinh) or (chu tri))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thuat sach)) ky sang tao hoi. hieu ve cac tuc va hanh cua ((chua tinh) OR (chu tri)).
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (thuat sach)) ky sang tao hoi. hieu ve cac tuc va hanh cua ((chua tinh) or (chu tri))*.