Perhaps you should try some spelling variations:
thanh trung » thanh tung
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu, hoc hien
tai thanh » thi thanh, tai chinh, ban thanh
thanh cau » thanh chau, thanh mau, nhanh cau
doc hieu » toc thieu, hoc hien
van cong » van dong, van phong, phan cong
cong tai » cong thai, cong tac, dong tai
cua van » cua ban, cua vat, cua dan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) OR (hoc thieu)) xanh - ((hanh trinh) or (thanh trung)) cua van cong tai thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc thieu)) xanh - ((hanh trinh) OR (thanh trung)) cua van cong tai thanh cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) OR (hoc thieu)) xanh - ((hanh trinh) or (thanh trung)) cua van cong tai thanh cau".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) OR (hoc thieu)) xanh - ((hanh trinh) or (thanh trung)) cua van cong tai thanh cau*.