Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh oai
thanh tai » thanh hai, thanh toan, doanh tai
va triet » va trien, ve triet, cua triet
thuc dat » thuc vat, thuc dan, thuc day
su sach » so sach, vu sach
sach ly » sach y, sach lo, sach ty
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
ly nang » ky nang, ly hang, ly vang
ve am » va am
thiet » thieu

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 ly nang xa hoi. hieu ve am thuc dat ((thanh vai) OR (thanh tai)) ((va triet) or (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ly nang xa hoi. hieu ve am thuc dat ((thanh vai) OR (thanh tai)) ((va triet) OR (va thiet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ly nang xa hoi. hieu ve am thuc dat ((thanh vai) OR (thanh tai)) ((va triet) or (va thiet))".
• Adding a wildcard symbol may retrieve word variants: su sach ly nang xa hoi. hieu ve am thuc dat ((thanh vai) OR (thanh tai)) ((va triet) or (va thiet))*.