Perhaps you should try some spelling variations:
luc nganh » luc ngan, chuc nganh, luat nganh
nganh hoa » thanh hoa, khanh hoa, danh hoa
cuu nang » chuc nang, cam nang, cuu van
chu nhan » chau nhan, cu nhan, chu han
nhan dan » phan dau, gian dan, nhan tai
tu sach » thu sach, su sach, tu cach
te sach » toc sach
toi tap » toi gap, toan tap, tong tap
hoi chu » hoi chuc
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: ((tu sach) OR (te sach)) toi tap, nghien cuu nang luc nganh hoa hoc xa hoi chu nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (te sach)) toi tap, nghien cuu nang luc nganh hoa hoc xa hoi chu nhan dan".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (te sach)) toi tap, nghien cuu nang luc nganh hoa hoc xa hoi chu nhan dan*.