Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
hang cong » dang cong, hang nong, thanh cong
bang cong » dang cong, bang song, dung cong
dan toan » van toan, dan than, manh toan
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 thieu tinh - hanh tranh cua ((((hang cong) OR (bang cong))) or (han tong)) dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - hanh tranh cua ((((hang cong) OR (bang cong))) OR (han tong)) dan toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu tinh - hanh tranh cua ((((hang cong) OR (bang cong))) or (han tong)) dan toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - hanh tranh cua ((((hang cong) OR (bang cong))) or (han tong)) dan toan tap*.