Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
hanh tai » thanh tai, hang tai, han tai
cam tuc » cam xuc, cam tu, nam thuc
va hanh » van hanh, va thanh, va danh
tu sach » thu sach, te sach, tu cach
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
ki nang » ky nang
su sach » so sach, vu sach
tuc va » thuc va, truc va, tuc xa
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) OR (su sach)) ki nang xa hoi. hieu ve cam tuc va hanh tai ((cua triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ki nang xa hoi. hieu ve cam tuc va hanh tai ((cua triet) OR (su triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) ki nang xa hoi. hieu ve cam tuc va hanh tai ((cua triet) or (su triet))*".