Perhaps you should try some spelling variations:
thanh lam » thanh lap, hanh lam, thanh nam
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
vien cac » vien bach, vien dai, vien da
va thanh » gia thanh, ban thanh, va tinh
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
lang ha » long ha
ky lang » ky nang, ky dang, ky tang
ve cac » va cac
ha hoi » hoa hoi, ha noi, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky lang ha hoi. hieu ((ve cac) OR (vien cac)) duc va thanh lam ((cua triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky lang ha hoi. hieu ((ve cac) OR (vien cac)) duc va thanh lam ((cua triet) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky lang ha hoi. hieu ((ve cac) OR (vien cac)) duc va thanh lam ((cua triet) or (su triet))".
• Adding a wildcard symbol may retrieve word variants: su sach ky lang ha hoi. hieu ((ve cac) OR (vien cac)) duc va thanh lam ((cua triet) or (su triet))*.