Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cham cuu » cap cuu
chat cua » nhat cua, chat va, chat huu
nang lai » nang tai, mang lai, nang cai
lai hoi » dai hoi, lai hoa, lai roi
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
cu tren » tu tren, dua tren
vi cu » vi su, vi xu, vi du

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 lai hoi. lieu va ((cham cuu) OR (chat cua)) ((va hanh) or (va danh)) vi cu tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ky nang lai hoi. lieu va ((cham cuu) OR (chat cua)) ((va hanh) OR (va danh)) vi cu tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ky nang lai hoi. lieu va ((cham cuu) OR (chat cua)) ((va hanh) or (va danh)) vi cu tren".
• Adding a wildcard symbol may retrieve word variants: thuat sach ky nang lai hoi. lieu va ((cham cuu) OR (chat cua)) ((va hanh) or (va danh)) vi cu tren*.