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 » hieu va, thien van, lieu va
cam dua » ca dua, cay dua, chay dua
cua tre » cua te, cuu tre, dua tren
dua ban » dia ban, cua ban, qua ban
tu sach » thu sach, te sach, tu cach
sang ma » tang ma, nang ma, sang tao
ky sang » ky nang, ky dang, ky tang
su sach » so sach, vu sach
van cam » van nam, van lam, van cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (su sach)) ky sang ma hoa. hieu van cam dua ban thanh tai ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky sang ma hoa. hieu van cam dua ban thanh tai ((cua tre) OR (cua triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (su sach)) ky sang ma hoa. hieu van cam dua ban thanh tai ((cua tre) OR (cua triet))*".