Perhaps you should try some spelling variations:
van trien » van tien, va trien, van thien
hanh hai » thanh hai, nhanh hai, hang hai
van tren » van tien, quan tren, van trung
vu sach » vu bach, su sach, vu khach
nang ma » tang ma, sang ma, nang cao
cam tuc » cam tu, nam thuc, dam thuc
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa

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 hai ((van trien) OR (van tren))~.
• 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 hai ((van trien) OR (van tren))*.
• 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 hai ((van trien) OR (van tren))*".