Perhaps you should try some spelling variations:
khac tuc » khac phuc, khac tung, khac cuoc
va dinh » van dinh, va kinh, va tinh
sach ty » sach y, sach tu, sach thu
te sach » toc sach
va khac » va khao, va kha, vu khac
hieu va » lieu va, hieu qua
ty nang » ky nang, ty xang, ty hang
va danh » va dan, va hanh, dia danh
vi cau » ve cau, di cau, viet cau
va cau » van cau, va cac, va dau
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty nang x hoi. hieu va khac tuc ((va danh) or (va dinh)) ((vi cau) OR (va cau)) tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang x hoi. hieu va khac tuc ((va danh) OR (va dinh)) ((vi cau) OR (va cau)) tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang x hoi. hieu va khac tuc ((va danh) or (va dinh)) ((vi cau) OR (va cau)) tren".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang x hoi. hieu va khac tuc ((va danh) or (va dinh)) ((vi cau) OR (va cau)) tren*.