Perhaps you should try some spelling variations:
thanh vien » nhan vien, thanh van
cau tren » cu tren, dau tren, ca tren
vien cau » vien cac, vien cao, vien sau
va thanh » gia thanh, ban thanh, va tinh
cau xuc » cam xuc, cau luc, cau truc
tu sach » thu sach, su sach, te sach
hieu va » hieu qua
ty lang » tay lang, ty hang, tu lang
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((ty lang) or (ty xang)) xa hoi. ((hieu va) OR (lieu va)) cau xuc va thanh vien cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ty lang) OR (ty xang)) xa hoi. ((hieu va) OR (lieu va)) cau xuc va thanh vien cau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ty lang) or (ty xang)) xa hoi. ((hieu va) OR (lieu va)) cau xuc va thanh vien cau tren".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ty lang) or (ty xang)) xa hoi. ((hieu va) OR (lieu va)) cau xuc va thanh vien cau tren*.