Perhaps you should try some spelling variations:
thien danh » thien dang, thien thanh, thien chanh
thien anh » tien anh, thien thanh, thien chanh
cua nhung » va nhung
anh tang » anh bang, anh dang, anh nang
cua hang » cua dang, cua cong, cua ban
cong tac » cong ty
tac toan » tap toan, tam toan, hach 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 ((thien anh) OR (thien danh)) - anh tang ((cua hang) or (cua nhung)) cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien anh) OR (thien danh)) - anh tang ((cua hang) OR (cua nhung)) cong tac toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien anh) OR (thien danh)) - anh tang ((cua hang) or (cua nhung)) cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thien anh) OR (thien danh)) - anh tang ((cua hang) or (cua nhung)) cong tac toan cau*.