Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
cong thuoc » cong thuc, dong thuoc, long thuoc
thuoc mai » thuoc ma, thuoc tai, thuoc moi
hoc nganh » hoc nhanh
nhan van » nhan dan, nhan va, phan van
sach hoi » sach doi, sach moi, cach thoi
va nhan » van nhan, ca nhan, va phan
mai hoi » mai khoi, dai hoi, lai hoi
tu sach » thu sach, su sach, te sach
va dong » van dong, xa dong, lao dong
hoi tap » hoi dap, hoc tap, hoi tai
ha dong » hoat dong, van dong

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 hoi tap, nghiep ((va dong) OR (ha dong)) hoc nganh cong thuoc mai hoi va nhan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoi tap, nghiep ((va dong) OR (ha dong)) hoc nganh cong thuoc mai hoi va nhan van".
• Adding a wildcard symbol may retrieve word variants: tu sach hoi tap, nghiep ((va dong) OR (ha dong)) hoc nganh cong thuoc mai hoi va nhan van*.