Perhaps you should try some spelling variations:
thien van » thi van
va trien » va truyen, va thiet, va tuyen
hanh dao » lanh dao, thanh dat, thanh dam
hieu van » hieu va, lieu va, hieu ve
han tai » hang tai, nhan tai, van tai
sach ky » sac ky, sach y, sach ty
tu sach » thu sach, su sach, te sach
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
cau xuc » cam xuc, cau luc, cau truc
xuc va » duc va, tuc va, luc va

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 ky lang xa hoi. ((hieu van) OR (thien van)) cau xuc va ((han tai) OR (hanh dao)) va trien~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky lang xa hoi. ((hieu van) OR (thien van)) cau xuc va ((han tai) or (hanh dao)) va trien~".
• Adding a wildcard symbol may retrieve word variants: tu sach ky lang xa hoi. ((hieu van) OR (thien van)) cau xuc va ((han tai) or (hanh dao)) va trien*.