Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc thien » hoc hien, hoc thieu, hoc thiet
thien anh » thien danh, tien anh, thien thanh
hanh tang » hanh trang, hanh mang, hanh tung
cua nhung » va nhung
anh tang » anh bang, anh dang, anh nang
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 - ((((hanh tang) OR (anh tang))) or (canh tranh)) cua nhung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien anh - ((((hanh tang) OR (anh tang))) OR (canh tranh)) cua nhung cong tac toan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien anh - ((((hanh tang) OR (anh tang))) or (canh tranh)) cua nhung cong tac toan cau*".