Perhaps you should try some spelling variations:
va trien » va truyen, va thiet, va tuyen
hanh lam » thanh lap, hanh kem, hanh va
ban hanh » ban hang
chat xuc » chat huu, cam xuc, chao xu
van chat » cao chat
hieu van » hieu va, thien van, lieu va
xuc ban » duc ban, cuc ban, quoc ban
so sach » so sanh, co sach, hoc sach
nang ma » tang ma, sang ma, nang cao
nang xa » nang x, lang xa, mang xa
bo sach » co sach, hoc sach
lam va » nam va, dam va, lam ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so sach) or (bo sach)) ty ((nang xa) OR (nang ma)) hoi. hieu van chat xuc ban hanh lam va trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (bo sach)) ty ((nang xa) OR (nang ma)) hoi. hieu van chat xuc ban hanh lam va trien*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) or (bo sach)) ty ((nang xa) OR (nang ma)) hoi. hieu van chat xuc ban hanh lam va trien*".