Perhaps you should try some spelling variations:
cua triet » su triet, va triet
tham luu » tam luu, thanh luu, cham cuu
ban hanh » ban hang
hanh tai » thanh tai, hang tai, han tai
cua viet » ca viet, hoa viet, cua vat
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky lang xa hoi. hieu va ((tham luu) or (cap cuu)) ban hanh tai ((cua triet) OR (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky lang xa hoi. hieu va ((tham luu) OR (cap cuu)) ban hanh tai ((cua triet) OR (cua viet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky lang xa hoi. hieu va ((tham luu) or (cap cuu)) ban hanh tai ((cua triet) OR (cua viet))*".