Perhaps you should try some spelling variations:
phong kham » phong nam
kham thong » khap thong, khau thong, pham thuong
thong cong » trong cong, tong cong, thong thong
duoc dien » duoc lieu
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
doc hieu » hoc thieu, hoc hien
toan cao » toan ban, toan tap

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

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