Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
luat nganh » luat ngan, thuat nganh, luat doanh
long luat » cong suat, tong luan, long cua
nganh hoa » thanh hoa, khanh hoa, danh hoa
sach doi » sach hoi, sach moi, sach dao
cuu long » cuu cong, cuu tong, cuu nang
doi tap » doi tac, doi dap, doi tai
va nhan » van nhan, ca nhan, va phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach doi tap, nghien cuu long luat nganh hoa hoc ma hoa ((va nhan) or (vo nhai)) van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach doi tap, nghien cuu long luat nganh hoa hoc ma hoa ((va nhan) OR (vo nhai)) van.
• Adding a wildcard symbol may retrieve word variants: thuat sach doi tap, nghien cuu long luat nganh hoa hoc ma hoa ((va nhan) or (vo nhai)) van*.