Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
cua triet » cua viet, su triet, va triet
doc sach » hoc sach, toc sach, nuoc sach
hanh vai » hanh vi, hanh tai, hanh van
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang ma » tang ma, sang ma, nang cao
hieu vi » hieu voi, hieu va, hieu ve
thuc va » thuc vat, thuc dan, thuc day
hanh va » hang va, hanh vi
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 ty nang ma hoi. hieu vi pham thuc va ((hanh vai) OR (hanh va)) cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc sach ty nang ma hoi. hieu vi pham thuc va ((hanh vai) OR (hanh va)) cua triet".
• Adding a wildcard symbol may retrieve word variants: doc sach ty nang ma hoi. hieu vi pham thuc va ((hanh vai) OR (hanh va)) cua triet*.