Perhaps you should try some spelling variations:
thieu manh » hieu manh, tien manh, trieu minh
nguong ban » nguoi ban, nguong va, nguong ca
nguong dan » huong dan
hoc thieu » toc thieu, hoc hien
hanh hang » thanh hang, hang hang, hanh mang
hanh han » hanh nhan, hanh phan, hanh san
quan cau » quang cao, toan cau, quan ha
va nang » van nang, da nang, cam nang

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 manh - ((hanh hang) or (hanh han)) va nang ((nguong ban) OR (nguong dan)) quan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu manh - ((hanh hang) OR (hanh han)) va nang ((nguong ban) OR (nguong dan)) quan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu manh - ((hanh hang) or (hanh han)) va nang ((nguong ban) OR (nguong dan)) quan cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu manh - ((hanh hang) or (hanh han)) va nang ((nguong ban) OR (nguong dan)) quan cau*.