Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
van thanh » ban thanh, van tuan
hieu cao » chieu cao, hieu cac, hieu ca
cao chao » chao chao, cao chat, cao cho
van hanh » ban hanh, van anh, van ban
su triet » su viet, su tien, ve triet
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y nang ma hoa. hieu cao chao xu ((van hanh) or (van thanh)) vi ((cua triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang ma hoa. hieu cao chao xu ((van hanh) OR (van thanh)) vi ((cua triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: su sach y nang ma hoa. hieu cao chao xu ((van hanh) or (van thanh)) vi ((cua triet) or (su triet))*.