Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
doc sach » hoc sach, toc sach, nuoc sach
thuc dan » thuc hanh, hoc dan, thuc vat
viet cua » viec cua, viet ca, viet qua
nang ma » tang ma, sang ma, nang cao
va nham » va cham, va tham, va nha
thuc va » thuc vat, thuc day
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc sach y nang ma hoi. lieu va nham ((thuc va) or (thuc dan)) anh viet cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc sach y nang ma hoi. lieu va nham ((thuc va) OR (thuc dan)) anh viet cua triet.
• Adding a wildcard symbol may retrieve word variants: doc sach y nang ma hoi. lieu va nham ((thuc va) or (thuc dan)) anh viet cua triet*.