Perhaps you should try some spelling variations:
nhan duoc » nhan cuoc, nhan quoc, phan duoc
cua triet » cua viet, su triet, va triet
va nhan » van nhan, ca nhan, va phan
doi cua » dai cua, hoi cua
vu sach » vu bach, su sach, vu khach
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
te sach » toc sach
hieu va » lieu va, hieu qua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu sach) or (te sach)) ky dang xa hoi. hieu va nhan duoc ((va tinh) OR (may tinh)) doi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (te sach)) ky dang xa hoi. hieu va nhan duoc ((va tinh) OR (may tinh)) doi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) or (te sach)) ky dang xa hoi. hieu va nhan duoc ((va tinh) OR (may tinh)) doi cua triet".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (te sach)) ky dang xa hoi. hieu va nhan duoc ((va tinh) OR (may tinh)) doi cua triet*.