Perhaps you should try some spelling variations:
duong trong » dung trong
lanh tranh » canh tranh, lan tranh, hanh trinh
tranh cua » doanh cua, manh cua
cua duong » cua dong, cua huong, qua duong
trong vat » trong van, trong va, trong dat
ho chieu » theo chieu, hoc thieu, doi chieu
phan cau » phan dau, phan cac, phan lap
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (doi chi)) xanh - lanh tranh cua duong trong vat ((phan cau) OR (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chi)) xanh - lanh tranh cua duong trong vat ((phan cau) OR (phan tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (doi chi)) xanh - lanh tranh cua duong trong vat ((phan cau) OR (phan tu))".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chi)) xanh - lanh tranh cua duong trong vat ((phan cau) OR (phan tu))*.