Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trang, lanh tranh
hanh trinh » canh tranh, hanh chinh
dung chung » dung cong, dung ung, dung trung
tieu tinh » trieu tinh, tieu trinh, lieu tinh
chung dan » chung han, hung dan, chung nhan
cua dung » cua dang, cua dong, qua dung
than tap » toan tap, phan tap, than cap
han tap » han tai, toan tap, nhan tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu tinh - ((hanh tranh) OR (hanh trinh)) cua dung chung dan ((than tap) or (han tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu tinh - ((hanh tranh) OR (hanh trinh)) cua dung chung dan ((than tap) OR (han tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu tinh - ((hanh tranh) OR (hanh trinh)) cua dung chung dan ((than tap) or (han tap))".
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - ((hanh tranh) OR (hanh trinh)) cua dung chung dan ((than tap) or (han tap))*.