Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
chat tuc » chat xuc, luat tuc, chat huu
thanh vi » hanh vi, thanh va, nhanh vi
thanh ve » hanh ve, thanh va, thanh vien
cau treo » cau theo, cau tren, cau triet
nang xa » nang x, lang xa, nang ma
va chat » van chat, va phat, cao chat
cu tren » tu tren, dua tren
y nang » ky nang, ly nang, v nang

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

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