Perhaps you should try some spelling variations:
cau tren » dau tren, ca tren, cau treo
thu sach » tu sach, thuat sach, thuoc sach
xuc ngan » luc ngan, luc nganh, vu ngan
cham xuc » cam xuc, chat xuc, cham soc
tu cach » tu cac
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
ty nang » ky nang, ty xang, ty hang
cu tren » tu tren, dua tren
x hoi » xa hoi, o hoi, x ho
hang » dang, bang, hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (thu sach)) ty nang x hoi. hieu ve cham xuc ngan hang va ((cau tren) OR (cu tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (thu sach)) ty nang x hoi. hieu ve cham xuc ngan hang va ((cau tren) OR (cu tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cach) or (thu sach)) ty nang x hoi. hieu ve cham xuc ngan hang va ((cau tren) OR (cu tren))".
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (thu sach)) ty nang x hoi. hieu ve cham xuc ngan hang va ((cau tren) OR (cu tren))*.