Perhaps you should try some spelling variations:
thien van » thi van
thu sai » thu hai, thu tai, thu san
hieu ve » hieu va, hieu van
dao duc » giao duc, tao duoc
va hanh » van hanh, va thanh, va danh
sai ky » sac ky
di cua » doi cua, de cua, do cua
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 sai ky nang x hoi. ((hieu ve) or (thien van)) dao duc va hanh ((di cua) OR (dai cua)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sai ky nang x hoi. ((hieu ve) OR (thien van)) dao duc va hanh ((di cua) OR (dai cua)) tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sai ky nang x hoi. ((hieu ve) or (thien van)) dao duc va hanh ((di cua) OR (dai cua)) tu".
• Adding a wildcard symbol may retrieve word variants: thu sai ky nang x hoi. ((hieu ve) or (thien van)) dao duc va hanh ((di cua) OR (dai cua)) tu*.