Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
cua tre » cuu tre, cua triet, dua tren
anh bai » sach bai, danh bat, hinh bai
anh dai » vanh dai, anh dat, anh tai
cao duc » dao duc, cao suc, giao duc
hieu ve » hieu va, hieu van
tang ma » mang may, tang van
lanh y » anh y, hanh y, lanh lay
ve cao » va cao, ve bao, ve cac
ma hoi » mai hoi, xa hoi, ma hoa
y tang » ky tang, 6 tang, 7 tang
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat lanh y tang ma hoi. hieu ve cao duc tan ((anh dai) OR (anh bai)) ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat lanh y tang ma hoi. hieu ve cao duc tan ((anh dai) OR (anh bai)) ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat lanh y tang ma hoi. hieu ve cao duc tan ((anh dai) OR (anh bai)) ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: thuat lanh y tang ma hoi. hieu ve cao duc tan ((anh dai) OR (anh bai)) ((cua tre) or (cua te))*.