Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
ban thanh » ban hanh, ban hang
thanh lap » thanh san, phan lap, thanh hai
chi xanh » chi anh, chi danh, chi hanh
trung ha » trung hoc, trung cap
cong ban » cong bang, cong san, cong tan
doi chi » doi khi

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi xanh - hanh ((trung ha) or (trung tam)) thong cong ban thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - hanh ((trung ha) OR (trung tam)) thong cong ban thanh lap.
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - hanh ((trung ha) or (trung tam)) thong cong ban thanh lap*.