Perhaps you should try some spelling variations:
thu hoang » thu hang, thu hoan, thu hong
thi hoang » thai hoang, thi hong, thi hang
hanh vai » hanh vi, hanh va, hanh tai
pham duy » pham duc
so sanh » do sanh
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
hieu va » hieu qua
van hoi » van hoa, van hoc, van hoe
duy va » duy vat, duy van, day va
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh ((thu hoang) OR (thi hoang)) van hoi. ((hieu va) or (lieu va)) pham duy va hanh vai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh ((thu hoang) OR (thi hoang)) van hoi. ((hieu va) OR (lieu va)) pham duy va hanh vai cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh ((thu hoang) OR (thi hoang)) van hoi. ((hieu va) or (lieu va)) pham duy va hanh vai cua tu".
• Adding a wildcard symbol may retrieve word variants: so sanh ((thu hoang) OR (thi hoang)) van hoi. ((hieu va) or (lieu va)) pham duy va hanh vai cua tu*.