Perhaps you should try some spelling variations:
thanh trung » thanh tung
khien bang » phien ban, khien dong
nhung cong » dung cong, thong cong, hang cong
hoc khien » hoc hien, hoc nghien, hoc thieu
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
cong san » cong tac
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc khien bang - ((hanh tang) or (thanh trung)) cua nhung cong san ((toan cau) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc khien bang - ((hanh tang) OR (thanh trung)) cua nhung cong san ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc khien bang - ((hanh tang) or (thanh trung)) cua nhung cong san ((toan cau) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: hoc khien bang - ((hanh tang) or (thanh trung)) cua nhung cong san ((toan cau) OR (toan tap))*.