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