Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hoc thieu » toc thieu, hoc hien
hanh manh » hanh mang, lanh manh, hoang manh
dung cong » dung trong
manh cua » doanh cua, ban cua
than ban » thanh ban, than man, nhuan 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 manh cua ((dang cong) or (dung cong)) dan ((than ban) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - hanh manh cua ((dang cong) OR (dung cong)) dan ((than ban) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu tinh - hanh manh cua ((dang cong) or (dung cong)) dan ((than ban) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - hanh manh cua ((dang cong) or (dung cong)) dan ((than ban) OR (toan ban))*.