Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh dien » nhanh dien, hang dien, danh dien
tham luc » than luc, tham nuoc, tham thuc
van hanh » van thanh, ban hanh, van anh
cua tre » cua te, cuu tre, dua tren
luc van » luoc van, luu van, duc van
sach ky » sac ky, sach y, sach kem
sach ty » sach y, sach tu, sach thu
va tham » van tham, va cham, va thanh
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach ky) or (sach ty)) nang x hoi. lieu va tham luc van hanh dien ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sach ty)) nang x hoi. lieu va tham luc van hanh dien ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) or (sach ty)) nang x hoi. lieu va tham luc van hanh dien ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) or (sach ty)) nang x hoi. lieu va tham luc van hanh dien ((cua tre) OR (cua triet))*.