Perhaps you should try some spelling variations:
trong manh » trong anh, trong mach, trong canh
trong minh » truong minh, trong kinh, thong minh
hoc thieu » toc thieu, hoc hien
nang quan » ban quan, nang suat
quan dung » quang dung, quan duong, qua dung
ho chieu » theo chieu, doi chieu, mot chieu
anh nang » ganh nang, anh bang, anh dang
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)) sang - anh nang quan dung ((trong manh) OR (trong minh)) toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (hoc thieu)) sang - anh nang quan dung ((trong manh) OR (trong minh)) toan tap~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) sang - anh nang quan dung ((trong manh) OR (trong minh)) toan tap*.