Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
thuoc va » thuc va, thuoc ma, thuong va
va thanh » gia thanh, ban thanh, va tinh
thanh vi » hanh vi, thanh va, thanh ve
vu sach » vu bach, su sach, vu khach
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
y nang » ky nang, ly nang, v nang
cua tu » cua tuc, cua su, cua te
cua cu » cua chu, cua cau, cua su

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 hoa. ((hieu ve) or (lieu va)) nam thuoc va thanh vi ((cua tu) OR (cua cu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y nang ma hoa. ((hieu ve) OR (lieu va)) nam thuoc va thanh vi ((cua tu) OR (cua cu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach y nang ma hoa. ((hieu ve) or (lieu va)) nam thuoc va thanh vi ((cua tu) OR (cua cu))".
• Adding a wildcard symbol may retrieve word variants: vu sach y nang ma hoa. ((hieu ve) or (lieu va)) nam thuoc va thanh vi ((cua tu) OR (cua cu))*.