Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
thanh thanh » nhanh thanh, thanh toan, thanh phan
thien hach » thien thanh, hien hanh
hoc thien » hoc hien, hoc thieu, hoc thiet
va phuong » va thuong, cac phuong
cong dan » cong san, cong tan, huong dan
toan cau » toan cao, toan tap, toan tai
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: hoc thien hach - ((thanh thanh) or (tinh toan)) va phuong cong dan ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - ((thanh thanh) OR (tinh toan)) va phuong cong dan ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - ((thanh thanh) or (tinh toan)) va phuong cong dan ((toan cau) or (toan ban))*.