Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
van hanh » van thanh, ban hanh, van anh
thu sach » thuat sach, thuoc sach, thu hoach
nang tai » hang tai, tang tai, sang tai
xuc van » duc van, luc van, vuc van
cao xuc » cam xuc, cao duc, cao suc
tu sach » su sach, te sach, tu cach
tai hoi » tai khoi, dai hoi, tai hai
hieu va » lieu va
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 sach)) y nang tai hoi. ((hieu va) OR (hieu qua)) cao xuc van hanh vi cua thuoc~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (thu sach)) y nang tai hoi. ((hieu va) OR (hieu qua)) cao xuc van hanh vi cua thuoc".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (thu sach)) y nang tai hoi. ((hieu va) OR (hieu qua)) cao xuc van hanh vi cua thuoc*.