Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hanh trinh » hanh chinh
hoc thieu » toc thieu, hoc hien
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
cua dang » cua ban
toan ban » van 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 trinh) or (canh tranh)) ((cua dang) OR (cua cong)) cong manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - ((hanh trinh) OR (canh tranh)) ((cua dang) OR (cua cong)) cong manh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu tinh - ((hanh trinh) or (canh tranh)) ((cua dang) OR (cua cong)) cong manh toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - ((hanh trinh) or (canh tranh)) ((cua dang) OR (cua cong)) cong manh toan ban*.