Perhaps you should try some spelling variations:
hoan thanh » hoang thanh, ban thanh, van thanh
nganh hoa » thanh hoa, khanh hoa, danh hoa
tong tap » tuong tac, trong tan, cong tac
cuu dong » cuu cong, cuu tong, cuu long
co nganh » hoc nganh, cac nganh, moi nganh
su sach » so sach, vu sach
toi tap » toi gap, toan tap, tuoi tai
xa hoan » xa hoa, ba hoan, va hoan
san tai » sang tai, van tai, han tai
hoc xa » hoc ma

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 ((toi tap) OR (tong tap)), nghien cuu dong co nganh hoa hoc xa hoan thanh san tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((toi tap) OR (tong tap)), nghien cuu dong co nganh hoa hoc xa hoan thanh san tai".
• Adding a wildcard symbol may retrieve word variants: su sach ((toi tap) OR (tong tap)), nghien cuu dong co nganh hoa hoc xa hoan thanh san tai*.