Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hanh tang » hanh trang, anh tang, hanh mang
cua thong » cua thuong, cua khong, cua tong
khi xanh » khia canh, thi hanh, thi anh
tang cua » mang cua, hang cua, tang luan
cong dan » cong san, cong tan, huong dan
phan dau » hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi khi xanh - hanh tang cua thong cong dan ((phan dau) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi khi xanh - hanh tang cua thong cong dan ((phan dau) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: doi khi xanh - hanh tang cua thong cong dan ((phan dau) or (phan tu))*.