Perhaps you should try some spelling variations:
thanh tung » thanh cong
hien xanh » hien hanh, hien nhanh, chieu xanh
cong dang » cong dong, cong dan, cong dung
dang toan » dang tran, dan toan, dung toan
cua dung » cua dang, cua dong, cua rung
qua dung » quang dung, su dung, qua song
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 - ((thanh tung) or (thanh trung)) ((cua dung) OR (qua dung)) cong dang toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - ((thanh tung) OR (thanh trung)) ((cua dung) OR (qua dung)) cong dang toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - ((thanh tung) or (thanh trung)) ((cua dung) OR (qua dung)) cong dang toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - ((thanh tung) or (thanh trung)) ((cua dung) OR (qua dung)) cong dang toan cao*.