Perhaps you should try some spelling variations:
thanh doi » thanh loi, thanh moi, thanh do
cau tren » cu tren, dau tren, ca tren
va thanh » gia thanh, ban thanh, va tinh
cham tuc » nham thuc, pham thuc, tham thuc
nang noi » nang doc
doi cau » doi dau, di cau, doi ca
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
te sach » toc sach
nang co » nang cao, nang doc, nang hoc
bo sach » co sach, hoc sach
tuc va » thuc va, truc va, tuc xa

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) or (bo sach)) ky ((nang co) OR (nang noi)) hoi. hieu ve cham tuc va thanh doi cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (bo sach)) ky ((nang co) OR (nang noi)) hoi. hieu ve cham tuc va thanh doi cau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (bo sach)) ky ((nang co) OR (nang noi)) hoi. hieu ve cham tuc va thanh doi cau tren".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (bo sach)) ky ((nang co) OR (nang noi)) hoi. hieu ve cham tuc va thanh doi cau tren*.