Perhaps you should try some spelling variations:
thieu nien » thien nhien
cua triet » cua viet, su triet, va triet
sach kem » hanh kem
van hanh » van thanh, ban hanh, van anh
nien cac » vien cac, dien cac, bien cac
hanh va » hang va, hanh vi
vuc van » duc van, luc van, thuc van
cac vuc » cac nuoc, cac vung, cac cuoc
sang ma » tang ma, sang tao, mang may
nang ma » tang ma, nang cao, mang may
sac ky » cac ky, sai ky
va cua » va chua, via cua, ca cua

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 kem) or (sac ky)) ((nang ma) OR (sang ma)) hoi. thieu nien cac vuc van hanh va cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach kem) OR (sac ky)) ((nang ma) OR (sang ma)) hoi. thieu nien cac vuc van hanh va cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach kem) or (sac ky)) ((nang ma) OR (sang ma)) hoi. thieu nien cac vuc van hanh va cua triet*".