Perhaps you should try some spelling variations:
chau phu » chau au, chau tho, cho phu
chau phi » chi phi, chau tho
vu sach » vu bach, su sach, vu khach
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang
vi ve » gi ve, ve ve, vi 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) or (chau phi)) va hanh ((vi 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) OR (chau phi)) va hanh ((vi 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) or (chau phi)) va hanh ((vi ve) OR (va ve)) triet*".