Perhaps you should try some spelling variations:
toc sac » toc sach, toc san, hoc sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cua bao » cua ban, cua bo, cua bac
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
sac ky » cac ky, sai ky
ve cua » le cua, de cua, te cua
bao va » bao ve, tao va, ban va
vi cua » di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sac ky nang xa hoi. hieu ve cua bao va hanh ((vi cua) OR (vai cua)) triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sac ky nang xa hoi. hieu ve cua bao va hanh ((vi cua) OR (vai cua)) triet".
• Adding a wildcard symbol may retrieve word variants: toc sac ky nang xa hoi. hieu ve cua bao va hanh ((vi cua) OR (vai cua)) triet*.