Perhaps you should try some spelling variations:
khong thanh » phong thanh, thong thanh, khong hanh
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
dung khong » dung khang, dung hong, dung phong
thanh toan » thanh hoa, thanh san, tinh toan
trung xay » trong xay, trung gay, trung tam
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - thanh trung xay dung khong thanh toan cau~.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh trung xay dung khong thanh toan cau*.