Perhaps you should try some spelling variations:
thong dong » thong duong, thuong dong, thong cong
dong thanh » truong thanh
thanh toan » thanh hoa, thanh san, tinh toan
hieu xanh » chieu xanh, hieu manh, hieu nganh
trinh vat » trinh van, trinh luat, sinh vat
doc hieu » toc thieu, hoc thieu, hoc hien
toan cao » toan ban, toan tap

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 xanh - thanh ((tich va) or (trinh vat)) thong dong thanh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - thanh ((tich va) OR (trinh vat)) thong dong thanh toan cao.
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - thanh ((tich va) or (trinh vat)) thong dong thanh toan cao*.