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