Perhaps you should try some spelling variations:
nang thanh » dang thanh, tang thanh, nhanh thanh
quan trong » gian trong
hien xanh » hien hanh, hien nhanh, chieu xanh
nhan dang » nhan dan, phan dang, tran dang
dang quan » dang quang, nang quan, dung quan
cong nang » cong ngang, cong lang, cong nong
thanh tap » thanh lap, thanh tai, thanh tay

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 dang quan trong cong nang thanh tap~.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - nhan dang quan trong cong nang thanh tap*.