Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
doanh van » doan van, doanh va, doanh ban
va doanh » van doanh, vay doanh, va danh
van cua » vang cua, ban cua, dan cua
truc va » thuc va, thuc vat, trung va
cua tre » cua te, cuu tre, cua triet
ly vang » ly hang, ly quang
ve cau » ke cau, ve cac, le cau
va cau » van cau, va cac, va dau
ly van » le van, ly va, ly von
x hoi » xa hoi, o hoi, x ho

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