Perhaps you should try some spelling variations:
trong vang » trong dang, trong tang, trong bang
hoc thieu » toc thieu, hoc hien
canh manh » lanh manh, canh tranh, cach mang
cua nhung » va nhung
trong van » trong cac
ho chieu » theo chieu, doi chieu, mot chieu
manh cua » doanh cua, ban cua
toan tap » toan ban

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: ((ho chieu) OR (hoc thieu)) tinh - canh manh cua nhung ((trong van) OR (trong vang)) toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (hoc thieu)) tinh - canh manh cua nhung ((trong van) or (trong vang)) toan tap~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (hoc thieu)) tinh - canh manh cua nhung ((trong van) or (trong vang)) toan tap*.