Perhaps you should try some spelling variations:
chat xuc » chat huu, cam xuc, chao xu
sang tao » hang tai
vu chat » va chat, ve chat, du chat
va dinh » van dinh, va kinh, va tinh
va hanh » van hanh, va thanh, va danh
tu sach » thu sach, su sach, te sach
hieu vu » hieu va, hieu ve, hieu su
tao hoc » thao hoc, cao hoc, bao hoc
ky sang » ky nang, ky dang, ky tang
di cua » dai cua, doi cua, de cua
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (tu cac)) ky sang tao hoc. hieu vu chat xuc ((va hanh) or (va dinh)) di cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (tu cac)) ky sang tao hoc. hieu vu chat xuc ((va hanh) OR (va dinh)) di cua tu.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (tu cac)) ky sang tao hoc. hieu vu chat xuc ((va hanh) or (va dinh)) di cua tu*.