Perhaps you should try some spelling variations:
thien van » thi van
cua triet » cua viet, su triet, va triet
lang van » dang van, tang van, hoang van
tu sach » thu sach, su sach, te sach
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
van cam » van nam, van lam, van cau
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
ca viet » va viet, co viet, hoa viet
xuc va » duc va, tuc va, luc va

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 ky ((nang xa) or (lang van)) hoi. thien van cam xuc va danh vi ((cua triet) or (ca viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((nang xa) OR (lang van)) hoi. thien van cam xuc va danh vi ((cua triet) OR (ca viet)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((nang xa) or (lang van)) hoi. thien van cam xuc va danh vi ((cua triet) or (ca viet))*.