Perhaps you should try some spelling variations:
ve triet » va trien, su triet
thanh gi » thanh nghi, thanh gian, thanh hai
va thanh » gia thanh, ban thanh, va tinh
cac truc » cau truc, cac tru, cac trung
truc va » thuc va, thuc vat, trung va
hieu ve » hieu va, hieu van
so sach » so sanh, co sach, hoc sach
bo sach » co sach, hoc sach
ve cac » va cac, vien cac
gi ve » gia ve, gi de, gi he

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so sach) OR (bo sach)) tu ((xang x) or (nang x)) hoi. hieu ve cac truc va thanh gi ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (bo sach)) tu ((xang x) OR (nang x)) hoi. hieu ve cac truc va thanh gi ve triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) OR (bo sach)) tu ((xang x) or (nang x)) hoi. hieu ve cac truc va thanh gi ve triet".
• Adding a wildcard symbol may retrieve word variants: ((so sach) OR (bo sach)) tu ((xang x) or (nang x)) hoi. hieu ve cac truc va thanh gi ve triet*.