Perhaps you should try some spelling variations:
thiet danh » thien danh, thien anh, thien dang
hoc thiet » hoc thieu, hoc thuyet, hoc hien
tranh cua » doanh cua, manh cua
tong cong » trong cong, cong cong, dung cong
cua tong » cua cong, cua dong, cua nong
dan hang » ban hang, dat hang, dai hang
van hang » van khang, van hoang, van thang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thiet danh - canh tranh cua tong cong ((dan hang) OR (van hang)) dau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thiet danh - canh tranh cua tong cong ((dan hang) OR (van hang)) dau".
• Adding a wildcard symbol may retrieve word variants: hoc thiet danh - canh tranh cua tong cong ((dan hang) OR (van hang)) dau*.