Perhaps you should try some spelling variations:
phong kham » phong nam
kham nhung » tham nhung, khac nhung, kham xung
nhung cong » dung cong, thong cong, hang cong
duoc dien » duoc lieu
cong manh » cong danh, duong manh, cong thanh
doc diep » ngoc diep, dac diem, doc hieu
toan cao » toan tap
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc diep) or (duoc dien)) tinh - khanh phong kham nhung cong manh ((toan cao) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc diep) OR (duoc dien)) tinh - khanh phong kham nhung cong manh ((toan cao) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc diep) or (duoc dien)) tinh - khanh phong kham nhung cong manh ((toan cao) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ((doc diep) or (duoc dien)) tinh - khanh phong kham nhung cong manh ((toan cao) OR (toan ban))*.