Perhaps you should try some spelling variations:
ban danh » ban doanh, ban hanh, ban dan
su triet » su viet, su tien, ve triet
su sach » so sach
vu sach » vu bach, vu khach
mai hoi » mai khoi, dai hoi, lai hoi
va pham » van pham, va phat, va phap
duc ban » duc tan, duc van, dua ban
danh ki » danh di, danh kien, danh gia
y nang » ky nang, ly nang, v nang
ki su » ky su

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) or (vu sach)) y nang ((mai hoi) or (xa hoi)). lieu va pham duc ban danh ki su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) y nang ((mai hoi) OR (xa hoi)). lieu va pham duc ban danh ki su triet.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) y nang ((mai hoi) or (xa hoi)). lieu va pham duc ban danh ki su triet*.