Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
tranh cua » doanh cua, manh cua
hang cong » dang cong, hang nong, bang cong
dan phan » doan phan, dan chan, van phan
phan cau » phan dau, phan cac, phan tu
hoc hat » hoc phat, hoc chat, hoc hai
hoc ha » hoc hoa, hoc hai, hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc ha) OR (hoc hat)) tinh - canh tranh cua ((thong cong) or (hang cong)) dan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc ha) OR (hoc hat)) tinh - canh tranh cua ((thong cong) OR (hang cong)) dan phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc ha) OR (hoc hat)) tinh - canh tranh cua ((thong cong) or (hang cong)) dan phan cau".
• Adding a wildcard symbol may retrieve word variants: ((hoc ha) OR (hoc hat)) tinh - canh tranh cua ((thong cong) or (hang cong)) dan phan cau*.