Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
dieu tinh » diep tinh, lieu tinh, dien tinh
hang cong » dang cong, hang nong, bang cong
cho dieu » cao dieu, co dieu, khoa dieu
tranh va » tranh van, trang va, trinh va
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: cho dieu tinh - canh tranh va ((thong cong) or (hang cong)) tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho dieu tinh - canh tranh va ((thong cong) OR (hang cong)) tan toan cao.
• Adding a wildcard symbol may retrieve word variants: cho dieu tinh - canh tranh va ((thong cong) or (hang cong)) tan toan cao*.