Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
hang cong » dang cong, hang nong, bang cong
chinh ta » chinh tai, chinh va, chinh tri
toan tai » doanh tai, toan ban, toan cao
toan tap » toan ban
ta hang » va hang, ty hang, te hang

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 chinh ta hang cong thanh ((toan tai) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh chinh ta hang cong thanh ((toan tai) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh chinh ta hang cong thanh ((toan tai) or (toan tap))*.