Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
dau tren » dau tien, dat tren, dau tieng
va thanh » gia thanh, ban thanh, va tinh
dua tren » dung tren
cham duc » cham soc, pham duy, phan duc
nang dau » hang dau, xang dau, nang du
hieu ve » hieu va, hieu van
sach ty » sach y, sach tu, sach thu
dau hoi » cau hoi, dai hoi, dan hoi
ty nang » ky nang, ty xang, ty hang
te sach » toc sach

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 dau hoi. hieu ve ((cham duc) or (pham duc)) va thanh lai ((dua tren) or (dau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang dau hoi. hieu ve ((cham duc) OR (pham duc)) va thanh lai ((dua tren) OR (dau tren)).
• Adding a wildcard symbol may retrieve word variants: te sach ty nang dau hoi. hieu ve ((cham duc) or (pham duc)) va thanh lai ((dua tren) or (dau tren))*.