Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
thien van » thi van
dau tren » dau tien, dat tren, dau tieng
va thanh » gia thanh, ban thanh, va tinh
cau tren » cu tren, ca tren, cau treo
thu sach » tu sach, thuat sach, thuoc sach
co sach » bo sach, cuon sach, hoc sach
cam tuc » cam xuc, cam tu, nam thuc
nang xa » nang x, lang xa, nang ma
van cam » van nam, van lam, van cau
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((co sach) or (thu sach)) ky nang xa hoi. thien van cam tuc va thanh vai ((cau tren) OR (dau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((co sach) OR (thu sach)) ky nang xa hoi. thien van cam tuc va thanh vai ((cau tren) OR (dau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((co sach) or (thu sach)) ky nang xa hoi. thien van cam tuc va thanh vai ((cau tren) OR (dau tren))".
• Adding a wildcard symbol may retrieve word variants: ((co sach) or (thu sach)) ky nang xa hoi. thien van cam tuc va thanh vai ((cau tren) OR (dau tren))*.