Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
thieu khang » chieu khong, thieu quang
chinh van » chinh ban, chinh can, chinh ngan
chinh va » chinh ta, chinh tai, hanh va
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
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: toc thieu khang - hanh ((chinh van) or (chinh va)) phuong cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu khang - hanh ((chinh van) OR (chinh va)) phuong cong tan toan cao.
• Adding a wildcard symbol may retrieve word variants: toc thieu khang - hanh ((chinh van) or (chinh va)) phuong cong tan toan cao*.