Perhaps you should try some spelling variations:
thien van » thi van
thu hang » thi hang, thuc hanh, thu huong
thu hai » thu ha, thu nhap, thu nhat
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
di cua » dai cua, doi cua, de cua
cua tu » cua tuc, cua su, cua cu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu hai) OR (thu hang)) ky nang x hoi. ((hieu ve) or (thien van)) giao duc va hanh di cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu hai) OR (thu hang)) ky nang x hoi. ((hieu ve) OR (thien van)) giao duc va hanh di cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu hai) OR (thu hang)) ky nang x hoi. ((hieu ve) or (thien van)) giao duc va hanh di cua tu".
• Adding a wildcard symbol may retrieve word variants: ((thu hai) OR (thu hang)) ky nang x hoi. ((hieu ve) or (thien van)) giao duc va hanh di cua tu*.