Perhaps you should try some spelling variations:
sach tri » sach tai, sach tren, sach truc
tri mang » tri bang, trien mang, tren mang
te sach » toc sach
may hoi » may thoi, tay hoi, mai hoi
hieu ve » hieu van
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
xuc va » duc va, tuc va, luc va
va qua » va quan, va quy, va quang

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 tri mang may hoi. ((hieu ve) or (hieu va)) cac xuc va hanh va qua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tri mang may hoi. ((hieu ve) OR (hieu va)) cac xuc va hanh va qua su.
• Adding a wildcard symbol may retrieve word variants: te sach tri mang may hoi. ((hieu ve) or (hieu va)) cac xuc va hanh va qua su*.