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

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