Perhaps you should try some spelling variations:
hoach nganh » hoc nganh
thuat sach » thuat lanh, thuat san
sach ngan » sach ngon, sach nha, sach han
ngan hamy » ngan hay, ngan hang, ngan nam
nganh my » nganh y, nganh ma, nganh ky
hamy khi » ham khai, nhay khi
my khi » ly khi, ky khi, my chi

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thu hoach nganh my khi đong luc ) or ( thuat sach ngan hamy khi đong luc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu hoach nganh my khi đong luc ) OR ( thuat sach ngan hamy khi đong luc )).
• Adding a wildcard symbol may retrieve word variants: (( thu hoach nganh my khi đong luc ) or ( thuat sach ngan hamy khi đong luc ))*.