Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
lam duoc » nam duoc, luat duoc, lam thuoc
nang mai » nang ma, nang tai, lang mai
vai cua » dai cua, hai cua, lai cua
ban vai » ban va, ban gai, ban tai
lam xuc » cam xuc
tu sach » thu sach, te sach, tu cach
mai hoi » mai khoi, dai hoi, lai hoi
ly nang » ky nang, ly hang, ly vang
su sach » so sach, vu sach
cua duc » cua tuc, cua nuoc, cua quoc

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ly nang mai hoi. hieu van ((lam xuc) OR (lam duoc)) van ban vai cua duc~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (su sach)) ly nang mai hoi. hieu van ((lam xuc) OR (lam duoc)) van ban vai cua duc~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ly nang mai hoi. hieu van ((lam xuc) OR (lam duoc)) van ban vai cua duc*.