Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
van tuan » van quan, van ban, anh tuan
tuan vi » quan vi, luan vi, quans vi
luc van » luoc van, luu van, duc van
cam luc » cam xuc, cau luc
hieu ve » hieu va, hieu van
tu sach » thu sach, su sach, te sach
lai hoa » dai hoa, loai hoc
dai hoi » dai hoc, dai hai, dai moi
ve cam » ve cham, ve cac, va cam
y nang » ky nang, ly nang, v nang
vi cua » vai cua, di cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (thu hoach)) y nang ((lai hoa) or (dai hoi)). hieu ve cam luc van tuan vi cua thuoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu hoach)) y nang ((lai hoa) OR (dai hoi)). hieu ve cam luc van tuan vi cua thuoc.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu hoach)) y nang ((lai hoa) or (dai hoi)). hieu ve cam luc van tuan vi cua thuoc*.