Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh tai » thanh hai, thanh toan, doanh tai
ban thanh » ban hanh, ban hang
hieu van » thien van, lieu va, hieu ve
nam qua » nam quan, nam cua, nam mua
tai cua » thai cua, tai cuc, tri cua
qua ban » cua ban, qua quan
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
lai hoi » dai hoi, lai hoa, lai roi
mai hoi » mai khoi, dai hoi, mai doi
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: su sach y nang ((mai hoi) OR (lai hoi)). ((hieu van) or (hieu va)) nam qua ban thanh tai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang ((mai hoi) OR (lai hoi)). ((hieu van) OR (hieu va)) nam qua ban thanh tai cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang ((mai hoi) OR (lai hoi)). ((hieu van) or (hieu va)) nam qua ban thanh tai cua triet*".