Perhaps you should try some spelling variations:
ve triet » va trien, su triet
va thanh » gia thanh, ban thanh, va tinh
nien cam » nien giam, trien cam, vien cac
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va danh, ban hanh
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
tu sach » thu sach, su sach, te sach
vi ve » va ve, gi ve, ve ve

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky dang xa hoi. thieu ((nien cam) or (vien bach)) xuc ((va hanh) or (va thanh)) vi ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky dang xa hoi. thieu ((nien cam) OR (vien bach)) xuc ((va hanh) OR (va thanh)) vi ve triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ky dang xa hoi. thieu ((nien cam) or (vien bach)) xuc ((va hanh) or (va thanh)) vi ve triet*.