Perhaps you should try some spelling variations:
dien viet » tieng viet, trien viet, gian viet
thanh dat » thanh san, thanh hai, thanh van
suu viet » su viet, sau viet, sieu viet
hanh dao » lanh dao, thanh dam, doanh dao
sach ky » sac ky, sach y, sach ty
te sach » toc sach
cao xuc » cam xuc, cao duc, cao suc
hieu va » lieu va, hieu qua
tang ma » mang may, tang van
ky tang » ky nang, ky dang, kho tang
xuc va » duc va, tuc va, luc va
va cao » va cac, va co, va dao
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky tang ma hoi. hieu va cao xuc va ((hanh dao) or (thanh dat)) ((suu viet) or (dien viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky tang ma hoi. hieu va cao xuc va ((hanh dao) OR (thanh dat)) ((suu viet) OR (dien viet)).
• Adding a wildcard symbol may retrieve word variants: te sach ky tang ma hoi. hieu va cao xuc va ((hanh dao) or (thanh dat)) ((suu viet) or (dien viet))*.