Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
va thanh » ban thanh, va tinh, le thanh
lanh ly » lanh lay, doanh ly, khanh ly
ly vang » ly hang, ly van, ly quang
hieu ve » hieu va, hieu van
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
ve cau » ke cau, va cau, ve cac
x hoi » xa hoi, o hoi, 5 hoi

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 ly vang ((x hoi) OR (x ho)). hieu ve cau truc ((va thanh) or (gia thanh)) vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat lanh ly vang ((x hoi) OR (x ho)). hieu ve cau truc ((va thanh) OR (gia thanh)) vai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat lanh ly vang ((x hoi) OR (x ho)). hieu ve cau truc ((va thanh) or (gia thanh)) vai cua tre*".