Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cong ngang » cong nhan, cong quang, cong lang
ngang toan » nganh toan, dang toan, quang toan
hoc thiet » hoc thuyet, hoc hien, toc thieu
hoc thieu » toc thieu, hoc hien
tranh cua » manh cua
doanh cua » doanh luan
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 thiet) or (hoc thieu)) tach - canh ((tranh cua) OR (doanh cua)) nhung cong ngang toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thiet) OR (hoc thieu)) tach - canh ((tranh cua) OR (doanh cua)) nhung cong ngang toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thiet) or (hoc thieu)) tach - canh ((tranh cua) OR (doanh cua)) nhung cong ngang toan cau".
• Adding a wildcard symbol may retrieve word variants: ((hoc thiet) or (hoc thieu)) tach - canh ((tranh cua) OR (doanh cua)) nhung cong ngang toan cau*.