Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
mot chieu » doi chieu, ho chieu
hanh tang » hanh trang, anh tang, hanh mang
cua thong » cua thuong, cua khong, cua tong
doc hieu » toc thieu, hoc thieu
tang cua » mang cua, hang cua, tang luan
cong van » cong vang, cong san, song van
van van » tan van, san van, van vat

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((mot chieu) or (((doc hieu) or (hoc hien)))) xanh - hanh tang cua thong cong van van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (((doc hieu) OR (hoc hien)))) xanh - hanh tang cua thong cong van van ban.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (((doc hieu) or (hoc hien)))) xanh - hanh tang cua thong cong van van ban*.