Perhaps you should try some spelling variations:
chau phu » chau phi, chau au, chau tho
van hanh » van thanh, ban hanh, van anh
vu sach » vu bach, su sach, vu khach
nang xa » nang x, lang xa, nang ma
va hanh » va thanh, va danh, ban hanh
y nang » ky nang, ly nang, v nang
gi ve » gia ve, gi de, gi he
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: vu sach y nang xa hoi. hieu ky chau phu ((va hanh) OR (van hanh)) ((gi ve) or (va ve)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y nang xa hoi. hieu ky chau phu ((va hanh) OR (van hanh)) ((gi ve) OR (va ve)) triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach y nang xa hoi. hieu ky chau phu ((va hanh) OR (van hanh)) ((gi ve) or (va ve)) triet*".