Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thu sach » thuat sach, thuoc sach, thu hoach
cau tren » cu tren, dau tren, ca tren
thanh vi » hanh vi, thanh va, thanh ve
cham xuc » cam xuc, chat xuc, cham soc
dua tren » dung tren
nang van » dang van, tang van, lang van
van hoi » van hoa, van hoc, van hoe
hieu ve » hieu va, hieu van
xuc ban » duc ban, cuc ban, quoc ban
tu sach » su sach, te sach, tu cach
ve cham » va cham, ve chat, vu cham

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) or (tu sach)) ky nang van hoi. hieu ve cham xuc ban thanh vi ((cau tren) or (dua tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (tu sach)) ky nang van hoi. hieu ve cham xuc ban thanh vi ((cau tren) OR (dua tren)).
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (tu sach)) ky nang van hoi. hieu ve cham xuc ban thanh vi ((cau tren) or (dua tren))*.