Perhaps you should try some spelling variations:
chat xuc » chat huu, cam xuc, chao xu
dang tai » dang thai, dung tai, 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
tai hoc » thai hoc, dai hoc, bai hoc
ky dang » ky nang, ky danh
vi cua » vai cua, di cua
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: ((tu sach) or (tu cac)) ky dang tai hoc. hieu vu chat xuc ((va hanh) or (va dinh)) vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (tu cac)) ky dang tai hoc. hieu vu chat xuc ((va hanh) OR (va dinh)) vi cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (tu cac)) ky dang tai hoc. hieu vu chat xuc ((va hanh) or (va dinh)) vi cua te*.