Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
hanh hai » thanh hai, nhanh hai, hang hai
va trien » va truyen, va thiet, va tuyen
vu sach » vu bach, su sach, vu khach
nang ma » tang ma, sang ma, nang cao
cam tuc » cam tu, dam thuc, nam truc
va hanh » van hanh, va thanh, va danh
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 (nam thuc))) or (cam xuc)) va hanh 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 (nam thuc))) OR (cam xuc)) va hanh 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 (nam thuc))) or (cam xuc)) va hanh hai va trien*".