Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
ban thanh » ban hanh, ban hang
nang mai » nang ma, nang tai, lang mai
chat xuc » chat huu, chao xu, chat cua
thanh vi » hanh vi, thanh va, thanh ve
cua viet » ca viet, hoa viet, cua vat
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
mai hoi » mai khoi, dai hoi, lai hoi
vi cua » vai cua, di cua

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: su sach ty nang mai hoi. hieu hien ((chat xuc) OR (cam xuc)) ban thanh vi cua viet~.
• Adding a wildcard symbol may retrieve word variants: su sach ty nang mai hoi. hieu hien ((chat xuc) or (cam xuc)) ban thanh vi cua viet*.