Perhaps you should try some spelling variations:
thieu khang » chieu khong
thieu quang » hieu quang, thien quan, trien quang
hanh trinh » canh tranh, hanh chinh
van phuong » va phuong, van chuong, van phung
van phong » van dong, hai phong
dong tan » duong tan, dong tai, dong san
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) OR (thieu quang)) - hanh trinh ((van phuong) or (van phong)) dong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((thieu khang) OR (thieu quang)) - hanh trinh ((van phuong) OR (van phong)) dong tan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((thieu khang) OR (thieu quang)) - hanh trinh ((van phuong) or (van phong)) dong tan toan cao".
• Adding a wildcard symbol may retrieve word variants: toc ((thieu khang) OR (thieu quang)) - hanh trinh ((van phuong) or (van phong)) dong tan toan cao*.