Perhaps you should try some spelling variations:
cua triet » su triet, va triet
cua viet » ca viet, hoa viet, cua vat
cham loc » cham soc, chon loc, cham o
danh tu » doanh thu
te sach » toc sach
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
tang ma » mang may, tang van
y tang » ky tang, 6 tang, 7 tang
anh tu » anh tuan
ma hoi » mai hoi, xa hoi, ma hoa
loc va » hoc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y tang ma hoi. hieu ve cham loc va ((danh tu) or (anh tu)) ((cua triet) OR (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y tang ma hoi. hieu ve cham loc va ((danh tu) OR (anh tu)) ((cua triet) OR (cua viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y tang ma hoi. hieu ve cham loc va ((danh tu) or (anh tu)) ((cua triet) OR (cua viet))".
• Adding a wildcard symbol may retrieve word variants: te sach y tang ma hoi. hieu ve cham loc va ((danh tu) or (anh tu)) ((cua triet) OR (cua viet))*.