Perhaps you should try some spelling variations:
sach thue » sach thu, sach thieu, sach tham
thue nang » thien nang, thuat nang, thi nang
cau tren » cu tren, dau tren, ca tren
dinh vai » dinh van, dinh vi, dinh va
cuu tre » cua tre, cau treo
va dinh » van dinh, va kinh, va tinh
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
hieu ve » hieu van
nang xa » nang x, lang xa, nang ma
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 thue nang xa hoi. ((hieu ve) or (hieu va)) cam xuc va dinh vai ((cuu tre) OR (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thue nang xa hoi. ((hieu ve) OR (hieu va)) cam xuc va dinh vai ((cuu tre) OR (cau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach thue nang xa hoi. ((hieu ve) or (hieu va)) cam xuc va dinh vai ((cuu tre) OR (cau tren))".
• Adding a wildcard symbol may retrieve word variants: tu sach thue nang xa hoi. ((hieu ve) or (hieu va)) cam xuc va dinh vai ((cuu tre) OR (cau tren))*.