Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
van tuan » van quan, van ban, anh tuan
tuan san » luan san, tan san, thanh san
van cau » van dau, van chat, toan cau
van hau » van ha, van hai, van dau
duc van » duc va, duc tan, duc manh
san cua » sang cua, ban cua, dan cua
cua tre » cua te, cuu tre, cua triet
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: ((thu hoach) or (thuat sach)) ky nang x hoi. hieu ((van cau) or (van hau)) duc van tuan san cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu hoach) OR (thuat sach)) ky nang x hoi. hieu ((van cau) OR (van hau)) duc van tuan san cua tre.
• Adding a wildcard symbol may retrieve word variants: ((thu hoach) or (thuat sach)) ky nang x hoi. hieu ((van cau) or (van hau)) duc van tuan san cua tre*.