Perhaps you should try some spelling variations:
chay tren » thai tren, ca tren, cau tren
chau tre » chau tho, cho tre, cau tra
hanh lai » hanh lam, hanh tai, thanh lap
thu sach » tu sach, thuat sach, thuoc sach
ly vang » ly hang, ly van, ly quang
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va thanh, va danh
ly nang » ky nang, ly hang, ly quang
hieu ve » hieu va, hieu van
ve cac » va cac, vien cac
xuc va » duc va, tuc va, luc va
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ((ly nang) or (ly vang)) x hoi. hieu ve cac xuc va hanh lai ((chau tre) OR (chay tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((ly nang) OR (ly vang)) x hoi. hieu ve cac xuc va hanh lai ((chau tre) OR (chay tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ((ly nang) or (ly vang)) x hoi. hieu ve cac xuc va hanh lai ((chau tre) OR (chay tren))".
• Adding a wildcard symbol may retrieve word variants: thu sach ((ly nang) or (ly vang)) x hoi. hieu ve cac xuc va hanh lai ((chau tre) OR (chay tren))*.