Perhaps you should try some spelling variations:
dong thanh » truong thanh
thanh toan » thanh hoa, thanh san, tinh toan
hien xanh » hien hanh, hien nhanh, chieu xanh
tong dong » trong dong, tuong dong, thong dong
chinh va » chinh tai, hanh va, tinh va
chinh ta » chinh tai, chinh tri
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: hoc hien xanh - hanh ((chinh va) OR (chinh ta)) tong dong thanh toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - hanh ((chinh va) OR (chinh ta)) tong dong thanh toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh ((chinh va) OR (chinh ta)) tong dong thanh toan cao*.