Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
trang cua » tranh cua, trung cua, thang cua
tang cua » mang cua, hang cua, tang luan
cong san » cong tac
hanh tu » anh tu, danh tu
han tu » phan tu, ban tu, van tu

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