Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
van hanh » van thanh, ban hanh, van anh
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
cac xuc » cac nuoc, chat xuc, cac cuoc
va hanh » va thanh, va danh, ban hanh
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: thuat sach ky nang ma hoa. hieu va ((cac xuc) or (cam xuc)) ((va hanh) OR (van hanh)) vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ky nang ma hoa. hieu va ((cac xuc) OR (cam xuc)) ((va hanh) OR (van hanh)) vi cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ky nang ma hoa. hieu va ((cac xuc) or (cam xuc)) ((va hanh) OR (van hanh)) vi cua te*".