Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
luc nganh » luc ngan, chuc nganh, luat nganh
sach hoi » sach moi, cach thoi, hoach hoi
sach doi » sach moi, sach dao, sach bai
cuu dong » cuu cong, cuu tong, cuu long
dong luc » nang luc
cong hoa » dong hoa, dong hoc, hang hoa
phan tap » phan lap, han tap, pha tap
hoa mai » hoa dai, hoa may, hoa moi
mai hoi » mai khoi, dai hoi, lai hoi
va phan » van phan, va phat, va phap

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) or (sach doi)) tap, nghien cuu dong luc nganh cong hoa mai hoi va phan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach hoi) OR (sach doi)) tap, nghien cuu dong luc nganh cong hoa mai hoi va phan tap.
• Adding a wildcard symbol may retrieve word variants: tu ((sach hoi) or (sach doi)) tap, nghien cuu dong luc nganh cong hoa mai hoi va phan tap*.