Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dao nang » cao nang, da nang, dai nang
toc sach » hoc sach, thuoc sach, nuoc sach
doc sach » hoc sach, nuoc sach, dac sac
nang ma » tang ma, sang ma, nang cao
ve cham » va cham, ve chat, vu cham
vat cua » mat cua, bat cua, dat cua
hieu ve » hieu va, hieu van
ma hoi » mai hoi, xa hoi, ma hoa
tuc va » thuc va, truc va, duc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc sach) or (doc sach)) dao nang ma hoi. hieu ve cham ((tuc va) OR (tuc xa)) sinh vat cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (doc sach)) dao nang ma hoi. hieu ve cham ((tuc va) OR (tuc xa)) sinh vat cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc sach) or (doc sach)) dao nang ma hoi. hieu ve cham ((tuc va) OR (tuc xa)) sinh vat cua triet".
• Adding a wildcard symbol may retrieve word variants: ((toc sach) or (doc sach)) dao nang ma hoi. hieu ve cham ((tuc va) OR (tuc xa)) sinh vat cua triet*.