Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
thanh van » thanh san, thanh phan, thanh nhan
dang cong » dung cong
cong vang » cong lang, cong quang, cong ngang
vang toan » van toan, dang toan, quang toan
hoc dieu » hoc thieu, hoc hien
ho chieu » theo chieu, hoc thieu, doi chieu
cua dang » cua cong, cua ban
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: ((hoc dieu) or (ho chieu)) tinh - ((thanh van) OR (thanh toan)) cua dang cong vang toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc dieu) OR (ho chieu)) tinh - ((thanh van) OR (thanh toan)) cua dang cong vang toan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc dieu) or (ho chieu)) tinh - ((thanh van) OR (thanh toan)) cua dang cong vang toan cau*".