Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
nhung cong » thong cong, hang cong, nhung don
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
dung cong » dung trong
dan toan » van toan, dan than, manh toan
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 thieu tinh - canh tranh cua ((nhung cong) OR (dung cong)) dan toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu tinh - canh tranh cua ((nhung cong) OR (dung cong)) dan toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - canh tranh cua ((nhung cong) OR (dung cong)) dan toan cao*.