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
nang dai » nang dau, nang tai, nang cai
lang dai » lang hai, lang mai, lang chai
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
sach ty » sach y, sach tu, sach thu
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 ty ((nang dai) OR (lang dai)) hai. hieu vu 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 ty ((nang dai) OR (lang dai)) hai. hieu vu 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 ty ((nang dai) OR (lang dai)) hai. hieu vu cham duc va thanh lai ((dua tren) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: te sach ty ((nang dai) OR (lang dai)) hai. hieu vu cham duc va thanh lai ((dua tren) or (cuu tre))*.