Perhaps you should try some spelling variations:
thuat nhung » thuat hung, thuat chung, thuat chuong
thieu tinh » trieu tinh, chieu tinh, thien tinh
hanh trinh » canh tranh, hanh chinh
luat nhung » luat chung, luat thuong, cua nhung
hoc thieu » toc thieu, hoc hien
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than

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 trinh ((luat nhung) or (thuat nhung)) cong ((dan toan) OR (dan than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - hanh trinh ((luat nhung) OR (thuat nhung)) cong ((dan toan) OR (dan than)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu tinh - hanh trinh ((luat nhung) or (thuat nhung)) cong ((dan toan) OR (dan than)) cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - hanh trinh ((luat nhung) or (thuat nhung)) cong ((dan toan) OR (dan than)) cau*.