Perhaps you should try some spelling variations:
hien xanh » hien hanh, hien nhanh, chieu xanh
tranh cua » doanh cua, manh cua
dung cong » dung trong
nhanh cay » nhanh ha, nhanh bac, nhanh va
tang cua » mang cua, hang cua, tang luan
cong san » cong tac
hanh va » hang va, hanh vi

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 ((tranh cua) or (tang cua)) dung cong san ((hanh va) or (nhanh cay))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh ((tranh cua) OR (tang cua)) dung cong san ((hanh va) OR (nhanh cay)).
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh ((tranh cua) or (tang cua)) dung cong san ((hanh va) or (nhanh cay))*.