Perhaps you should try some spelling variations:
thanh lap » thanh san, thanh hai, thanh van
dang xay » dang van, van xay
phan lap » phan dau
tu cach » tu cac
cam duc » cam xuc, cao duc, pham duc
hieu ve » hieu va, hieu van
cach tu » cach thuc
tang ma » mang may, tang van
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu cach tu ((dang xay) or (tang ma)) hoi. hieu ve cam duc va ((thanh lap) or (phan lap)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach tu ((dang xay) OR (tang ma)) hoi. hieu ve cam duc va ((thanh lap) OR (phan lap)) cua tre.
• Adding a wildcard symbol may retrieve word variants: tu cach tu ((dang xay) or (tang ma)) hoi. hieu ve cam duc va ((thanh lap) or (phan lap)) cua tre*.