Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
cau treo » cau theo, cau triet, cau trieu
cham xuc » cam xuc, chat xuc, cham soc
thu sach » thuat sach, thuoc sach, thu hoach
va cham » va chat, va tham
tu sach » su sach, te sach, tu cach
xuc va » duc va, tuc va, luc va
va dan » ca dan, va dao, va dau
dan di » danh di, dan da, dan de
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: ((tu sach) or (thu sach)) ky nang x hoi. lieu va cham xuc va dan di ((cau treo) OR (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky nang x hoi. lieu va cham xuc va dan di ((cau treo) OR (cau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thu sach)) ky nang x hoi. lieu va cham xuc va dan di ((cau treo) OR (cau tren))".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) ky nang x hoi. lieu va cham xuc va dan di ((cau treo) OR (cau tren))*.