Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hien xanh » hien hanh, hien nhanh, chieu xanh
trinh han » trinh quan
nhan cach » phan cac
hinh bai » hinh tai, hinh thai, tinh bac
tinh hai » tinh thai, tinh chat, thanh hai
cong van » cong vang, cong san, song van
van nhan » van phan, van thanh, danh nhan

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 - canh ((hinh bai) or (((tinh hai) OR (trinh han)))) nhung cong van nhan cach~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - canh ((hinh bai) OR (((tinh hai) OR (trinh han)))) nhung cong van nhan cach.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - canh ((hinh bai) or (((tinh hai) OR (trinh han)))) nhung cong van nhan cach".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - canh ((hinh bai) or (((tinh hai) OR (trinh han)))) nhung cong van nhan cach*.