Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
va trien » va truyen, va thiet, va tuyen
cho duoc » che duoc, co duoc, cho cuoc
va triet » va thiet, ve triet, cua triet
hanh lam » hanh kem, hanh va, dinh lam
duoc van » duoc va, duc van, duoc ban
hieu va » lieu va, hieu qua
sach tu » sach thu, cach tu, sach ty
xang xa » lang xa, mang xa, ang xa
tu xang » ty xang, tu lang, tu quang
su sach » so sach, vu sach
va cho » van cho, va co, va che

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 tu xang xa hoi. hieu va cho duoc van ((hanh lam) OR (thanh lap)) ((va triet) or (va trien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach tu xang xa hoi. hieu va cho duoc van ((hanh lam) OR (thanh lap)) ((va triet) OR (va trien)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach tu xang xa hoi. hieu va cho duoc van ((hanh lam) OR (thanh lap)) ((va triet) or (va trien))".
• Adding a wildcard symbol may retrieve word variants: su sach tu xang xa hoi. hieu va cho duoc van ((hanh lam) OR (thanh lap)) ((va triet) or (va trien))*.