Perhaps you should try some spelling variations:
thieu manh » hieu manh, tien manh, trieu minh
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
trang cua » tranh cua, tang cua, trung cua
cong toan » cong tan, cong hoan, cong tuan
doanh cao » doanh co, doanh bao, doanh dao
doanh cho » danh cho, doanh co, doanh chu
manh cua » doanh cua, ban cua

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 ((trang cua) or (manh cua)) thong cong toan ((doanh cao) OR (doanh cho))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu manh - hanh ((trang cua) OR (manh cua)) thong cong toan ((doanh cao) OR (doanh cho)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu manh - hanh ((trang cua) or (manh cua)) thong cong toan ((doanh cao) OR (doanh cho))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu manh - hanh ((trang cua) or (manh cua)) thong cong toan ((doanh cao) OR (doanh cho))*.