Perhaps you should try some spelling variations:
va trien » va truyen, va thiet, va tuyen
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
vu sach » vu bach, su sach, vu khach
nang ma » tang ma, sang ma, nang cao
cam tuc » cam tu, nam thuc, dam thuc
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
hai va » hai van, thai va, hoi va

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 ma hoi. lieu va ((cam tuc) or (cam xuc)) ((va hanh) OR (va danh)) hai va trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y nang ma hoi. lieu va ((cam tuc) OR (cam xuc)) ((va hanh) OR (va danh)) hai va trien*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach y nang ma hoi. lieu va ((cam tuc) or (cam xuc)) ((va hanh) OR (va danh)) hai va trien*".