Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nang hoa » nang hoat, hang hoa, nang hoc
hanh di » hanh vi, hanh de, hang di
hoa hoi » khoa hoi, hoa hoc, hoa doi
hieu ve » hieu va, hieu van
tuc van » thuc van, truc van, duc van
tuc va » thuc va, truc va, tuc xa
di cua » dai cua, doi cua, de cua
sai ky » sac ky
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: su ((cac ky) or (sai ky)) nang hoa hoi. hieu ve cam ((tuc van) OR (tuc va)) hanh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((cac ky) OR (sai ky)) nang hoa hoi. hieu ve cam ((tuc van) OR (tuc va)) hanh di cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((cac ky) or (sai ky)) nang hoa hoi. hieu ve cam ((tuc van) OR (tuc va)) hanh di cua triet*".