Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
cham duc » pham duc, cham soc, pham duy
dua tren » dung tren
toc sach » hoc sach, doc sach, thuoc sach
nang dai » nang dau, nang tai, lang dai
va thanh » gia thanh, ban thanh, va tinh
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
dai hoi » dai hoc, dai hai, dai moi
ty nang » ky nang, ty xang, ty hang
cuu tre » cua tre, cau tren, cau treo

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 (toc sach)) ty nang dai hoi. hieu ve cham duc va thanh lai ((dua tren) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ty nang dai hoi. hieu ve cham duc va thanh lai ((dua tren) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) ty nang dai hoi. hieu ve cham duc va thanh lai ((dua tren) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) ty nang dai hoi. hieu ve cham duc va thanh lai ((dua tren) or (cuu tre))*.