Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat song, thuat lanh
dua tren » dung tren
tan anh » tuan anh, tran anh, toan anh
cac duc » cac du, cao duc, cac dac
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
ve cac » va cac, vien cac
anh va » hanh va
y nang » ky nang, ly nang, v nang
cua te » cua tu
san y » dan y, san _

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat san y nang ((mai hoi) or (xa hoi)). hieu ve cac duc tan anh va ((dua tren) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat san y nang ((mai hoi) OR (xa hoi)). hieu ve cac duc tan anh va ((dua tren) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: thuat san y nang ((mai hoi) or (xa hoi)). hieu ve cac duc tan anh va ((dua tren) or (cua te))*.