Perhaps you should try some spelling variations:
thu hoang » thu hang, thu hoan, thi hoang
cham luc » cham soc, nhan luc, cham cuu
van hieu » cao hieu
sanh thu » sach thu, san thu, doanh thu
so sanh » do sanh
va hanh » van hanh, va thanh, va danh
hieu va » lieu va
van hoe » van hoa, van hoc, van hien
luc va » duc va, tuc va, loc va
vi cua » vai cua, di cua
cua cu » cua chu, cua cau, cua su

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 ((van hoe) OR (van hieu)). ((hieu va) or (hieu qua)) cham luc va hanh vi cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh thu hoang ((van hoe) OR (van hieu)). ((hieu va) OR (hieu qua)) cham luc va hanh vi cua cu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh thu hoang ((van hoe) OR (van hieu)). ((hieu va) or (hieu qua)) cham luc va hanh vi cua cu".
• Adding a wildcard symbol may retrieve word variants: so sanh thu hoang ((van hoe) OR (van hieu)). ((hieu va) or (hieu qua)) cham luc va hanh vi cua cu*.