Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
thien van » thi van
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
vu sach » vu bach, su sach, vu khach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
hieu ve » hieu va, hieu van
ma hoi » mai hoi, xa hoi, me hoi
vi cua » vai cua, di cua
nuoc » quoc, duoc, ngoc

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 ty nang ((ma hoi) or (ma hoa)). ((hieu ve) or (thien van)) dat nuoc va danh vi cua thuoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ty nang ((ma hoi) OR (ma hoa)). ((hieu ve) OR (thien van)) dat nuoc va danh vi cua thuoc.
• Adding a wildcard symbol may retrieve word variants: vu sach ty nang ((ma hoi) or (ma hoa)). ((hieu ve) or (thien van)) dat nuoc va danh vi cua thuoc*.