Perhaps you should try some spelling variations:
nuoc thuc » nuoc thu, nguon thuc, hoc thuc
cua triet » cua viet, su triet, va triet
thuc dan » thuc hanh, hoc dan, thuc vat
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
ve nuoc » ve duoc
dan dau » danh dau, doan dau, van dau
dau dai » dat dai, sau dai, dau da
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang

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 ((y nang) or (v nang)) xa hoi. hieu ve nuoc thuc dan dau dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((y nang) OR (v nang)) xa hoi. hieu ve nuoc thuc dan dau dai cua triet.
• Adding a wildcard symbol may retrieve word variants: su sach ((y nang) or (v nang)) xa hoi. hieu ve nuoc thuc dan dau dai cua triet*.