Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thuc gia » thuc giai, thue gia, tuc gia
thuc dia » thuc dieu, thuat dia, thuc giai
thanh vi » hanh vi, thanh va, thanh ve
cau tren » cu tren, dau tren, ca tren
co sach » bo sach, cuon sach, hoc sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: co sach y nang xa hoi. hieu va cac ((thuc gia) OR (thuc dia)) thanh vi ((cau tren) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co sach y nang xa hoi. hieu va cac ((thuc gia) OR (thuc dia)) thanh vi ((cau tren) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "co sach y nang xa hoi. hieu va cac ((thuc gia) OR (thuc dia)) thanh vi ((cau tren) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: co sach y nang xa hoi. hieu va cac ((thuc gia) OR (thuc dia)) thanh vi ((cau tren) or (cua triet))*.