Perhaps you should try some spelling variations:
hien xanh » hien hanh, hien nhanh, chieu xanh
dung cong » dung trong
cong dang » cong dong, cong dan, cong dung
vat dung » van dung, va dung, viet dung
dang cac » dung cac, bang cac, dong cac
cac cau » cac mau, bac cau, ca cau
sinh » dinh, minh, kinh

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 - nhan sinh vat dung cong dang cac cau~.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - nhan sinh vat dung cong dang cac cau*.