Perhaps you should try some spelling variations:
ve triet » va trien, su triet
hanh lai » hanh lam, hanh tai, thanh lap
xa hanh » xa thanh, xa khanh, va hanh
sach ty » sach y, sach tu, sach thu
bo sach » co sach, hoc sach
ty nang » ky nang, ty xang, ty hang
va cam » va cham, va cac, va cao
ma hoi » mai hoi, ma hoa, me hoi
lai ve » loai ve, lai va, la ve
ve cam » ve cham, ve cac, ve cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: bo sach ty nang ((ma hoi) or (xa hoi)). hieu ((ve cam) OR (va cam)) tuc xa hanh lai ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach ty nang ((ma hoi) OR (xa hoi)). hieu ((ve cam) OR (va cam)) tuc xa hanh lai ve triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "bo sach ty nang ((ma hoi) or (xa hoi)). hieu ((ve cam) OR (va cam)) tuc xa hanh lai ve triet".
• Adding a wildcard symbol may retrieve word variants: bo sach ty nang ((ma hoi) or (xa hoi)). hieu ((ve cam) OR (va cam)) tuc xa hanh lai ve triet*.