Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nhanh hai » nhanh thai, thanh hai, nhanh ha
tan nhanh » tai nhanh, tan nhan, tan thanh
sach thu » sach thue, sach thieu, sach tham
xach tay » canh tay
hai cua » thai cua, dai cua, hoi cua
lang xa » lang ha, dang xay, lang van
ve cac » vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((xach tay) or (sach thu)) lang xa hoi. hieu ((ve cac) OR (va cac)) duc tan nhanh hai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((xach tay) OR (sach thu)) lang xa hoi. hieu ((ve cac) OR (va cac)) duc tan nhanh hai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((xach tay) or (sach thu)) lang xa hoi. hieu ((ve cac) OR (va cac)) duc tan nhanh hai cua triet".
• Adding a wildcard symbol may retrieve word variants: su ((xach tay) or (sach thu)) lang xa hoi. hieu ((ve cac) OR (va cac)) duc tan nhanh hai cua triet*.