Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
hoc sach » hoc sinh, hoc cac, hoc anh
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
toan cuu » toan cau, toan cua, toan cao
hieu ve » hieu va, hieu van
va tinh » may tinh
cuu tre » cua tre, cau tren, cau treo
ve cac » va cac, vien cac
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: ((hoc sach) or (thuat lanh)) ky nang x hoi. hieu ve cac nuoc va tinh toan cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc sach) OR (thuat lanh)) ky nang x hoi. hieu ve cac nuoc va tinh toan cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((hoc sach) or (thuat lanh)) ky nang x hoi. hieu ve cac nuoc va tinh toan cuu tre*.