Perhaps you should try some spelling variations:
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
doi chieu » doi chi, ho chieu, mot chieu
cua nhung » va nhung
trong van » trong cac
doc hieu » toc thieu, hoc thieu, hoc hien
tinh cua » trinh cua, sinh cua, tinh chat
luong va » dung va
han tap » han tai, toan tap, nhan tai

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doc hieu)) xanh - nhanh tinh cua nhung ((trong van) OR (luong va)) han tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (doc hieu)) xanh - nhanh tinh cua nhung ((trong van) or (luong va)) han tap~".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (doc hieu)) xanh - nhanh tinh cua nhung ((trong van) or (luong va)) han tap*.