Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
dau tieng » dau tien, cau tieng, day tieng
va thanh » gia thanh, ban thanh, va tinh
dau tren » dau tien, dat tren, dau trong
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
cau luc » cau truc, cau phuc
va hanh » van hanh, va danh, ban hanh
va cau » van cau, va cac, va dau

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 xa hoi. lieu va cau luc ((va hanh) or (va thanh)) de ((dau tren) OR (dau tieng))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ky nang xa hoi. lieu va cau luc ((va hanh) OR (va thanh)) de ((dau tren) OR (dau tieng)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ky nang xa hoi. lieu va cau luc ((va hanh) or (va thanh)) de ((dau tren) OR (dau tieng))".
• Adding a wildcard symbol may retrieve word variants: thuat sach ky nang xa hoi. lieu va cau luc ((va hanh) or (va thanh)) de ((dau tren) OR (dau tieng))*.