Perhaps you should try some spelling variations:
thieu khang » chieu khong
thieu quang » hieu quang, thien quan, trien quang
thanh toan » thanh hoa, thanh san, tinh toan
thanh tra » thanh hoa
tuan dung » tuan duong, tran dung, tan dung
dung cong » dung trong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
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 ((thieu khang) or (thieu quang)) - ((thanh tra) OR (thanh toan)) tuan dung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu khang) OR (thieu quang)) - ((thanh tra) OR (thanh toan)) tuan dung cong tan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu khang) or (thieu quang)) - ((thanh tra) OR (thanh toan)) tuan dung cong tan toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu khang) or (thieu quang)) - ((thanh tra) OR (thanh toan)) tuan dung cong tan toan cau*.