Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, ho chieu, hoc dieu
toan tuan » tran tuan, toan quan, doan tuan
bang cong » dang cong, bang song, hang cong
van tuan » van quan, van ban, anh tuan
tuan cau » toan cau, quan cau, tuan cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc chieu) OR (hoc hien)) xanh - thanh toan tuan ((nhung cong) or (bang cong)) van tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc hien)) xanh - thanh toan tuan ((nhung cong) OR (bang cong)) van tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) OR (hoc hien)) xanh - thanh toan tuan ((nhung cong) or (bang cong)) van tuan cau".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) OR (hoc hien)) xanh - thanh toan tuan ((nhung cong) or (bang cong)) van tuan cau*.