Perhaps you should try some spelling variations:
cua triet » su triet, va triet
ban thanh » ban hanh, ban hang
cua viet » ca viet, hoa viet, cua vat
nganh ky » nganh y, nganh xay, hanh ky
thanh vi » hanh vi, thanh va, thanh ve
tuc ban » thuc ban, truc ban, tu ban
cam tuc » cam xuc, cam tu, nam thuc
sanh ky » hanh ky, sang ky, thanh ky
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
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: so ((sanh ky) or (nganh ky)) nang xa hoi. hieu ve cam tuc ban thanh vi ((cua triet) OR (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so ((sanh ky) OR (nganh ky)) nang xa hoi. hieu ve cam tuc ban thanh vi ((cua triet) OR (cua viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((sanh ky) or (nganh ky)) nang xa hoi. hieu ve cam tuc ban thanh vi ((cua triet) OR (cua viet))".
• Adding a wildcard symbol may retrieve word variants: so ((sanh ky) or (nganh ky)) nang xa hoi. hieu ve cam tuc ban thanh vi ((cua triet) OR (cua viet))*.