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
va hanh » van hanh, va thanh, va danh
sac ky » cac ky, sai ky
ca lao » cua lao, ca dao, ca cao
lao va » tao va, cao va, bao va
vi cua » vai cua
di cua » dai cua, doi cua, de cua
ve ca » ve cac, ve cai, ve cau

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 ca lao va hanh ((vi cua) OR (di cua)) triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sac ky nang xa hoi. hieu ve ca lao va hanh ((vi cua) OR (di cua)) triet".
• Adding a wildcard symbol may retrieve word variants: toc sac ky nang xa hoi. hieu ve ca lao va hanh ((vi cua) OR (di cua)) triet*.