Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hanh trinh » hanh chinh
lieu tinh » trieu tinh, diep tinh, bien tinh
dung cong » dung trong
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap
ho lieu » so lieu, co lieu, ho kieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho lieu tinh - ((hanh trinh) or (canh tranh)) cua ((thong cong) or (dung cong)) tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - ((hanh trinh) OR (canh tranh)) cua ((thong cong) OR (dung cong)) tan toan cao.
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - ((hanh trinh) or (canh tranh)) cua ((thong cong) or (dung cong)) tan toan cao*.