Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
minh vai » minh hai, minh ai, minh lai
minh va » tinh va, sinh va, sinh vat
duc van » duc va, duc tan, duc manh
cao duc » dao duc, cao suc, giao duc
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
lanh y » anh y, hanh y, lanh lay
ma hoi » mai hoi, ma hoa, me hoi
y sang » _ sang, duy sang
ve cao » va cao, ve bao, ve cac

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 sang ((ma hoi) OR (xa hoi)). hieu ve cao duc van ((minh vai) or (minh va)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat lanh y sang ((ma hoi) OR (xa hoi)). hieu ve cao duc van ((minh vai) OR (minh va)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat lanh y sang ((ma hoi) OR (xa hoi)). hieu ve cao duc van ((minh vai) or (minh va)) cua tre".
• Adding a wildcard symbol may retrieve word variants: thuat lanh y sang ((ma hoi) OR (xa hoi)). hieu ve cao duc van ((minh vai) or (minh va)) cua tre*.