Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
trinh doan » trinh toan, thinh doan, trinh dan
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
hang cong » hang nong, bang cong, thanh cong
dang cong » dung cong
doan cau » toan cau, doan dau, doan cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu tinh - canh tranh cua ((hang cong) OR (dang cong)) trinh doan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu tinh - canh tranh cua ((hang cong) OR (dang cong)) trinh doan cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - canh tranh cua ((hang cong) OR (dang cong)) trinh doan cau*.