Perhaps you should try some spelling variations:
trien cam » trien lam, trien cac, trien cay
va thanh » gia thanh, ban thanh, va tinh
ve triet » va trien, su triet
nien cam » nien giam, vien cac, vien cao
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va danh, ban hanh
nang xa » nang x, lang xa, nang ma
tu sach » thu sach, su sach, te sach
va ve » va de, va le, va vi

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 nang xa hoi. thieu ((nien cam) OR (trien cam)) xuc ((va hanh) or (va thanh)) va ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. thieu ((nien cam) OR (trien cam)) xuc ((va hanh) OR (va thanh)) va ve triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. thieu ((nien cam) OR (trien cam)) xuc ((va hanh) or (va thanh)) va ve triet".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. thieu ((nien cam) OR (trien cam)) xuc ((va hanh) or (va thanh)) va ve triet*.