Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
thieu bien » thieu nien, tieu bieu, hien bien
thanh toan » thanh hoa, thanh san, tinh toan
hanh hang » thanh hang, hanh han, hanh mang
hang hang » nang hang, cang thang, hung thang
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thieu bien) or (theo tieu)) tinh - ((hanh hang) OR (hang hang)) cua dung cong thanh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thieu bien) OR (theo tieu)) tinh - ((hanh hang) OR (hang hang)) cua dung cong thanh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thieu bien) or (theo tieu)) tinh - ((hanh hang) OR (hang hang)) cua dung cong thanh toan ban".
• Adding a wildcard symbol may retrieve word variants: ((thieu bien) or (theo tieu)) tinh - ((hanh hang) OR (hang hang)) cua dung cong thanh toan ban*.