Perhaps you should try some spelling variations:
khong cang » thong cong, hong bang, khong dung
tieu sang » chieu sang, tieu dung, tiem nang
hanh dung » thanh dung, hanh dong, manh dung
cho khong » chu khong, nho khong, khoi khong
anh dung » anh dong, anh huong, sach dung
cang san » cong san, cang sau, nang sang
than cao » thai cao, than cap, than sao
toan cao » toan ban, toan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sang - ((hanh dung) OR (anh dung)) cho khong cang san ((than cao) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sang - ((hanh dung) OR (anh dung)) cho khong cang san ((than cao) or (toan cao))~".
• Adding a wildcard symbol may retrieve word variants: theo tieu sang - ((hanh dung) OR (anh dung)) cho khong cang san ((than cao) or (toan cao))*.