Perhaps you should try some spelling variations:
nuoc sach » nguoi sach, hoc sach, cuoc cach
thanh vai » thanh hai, thanh van, thanh tai
dat tren » dat trong, dua tren
va thanh » gia thanh, ban thanh, va tinh
hieu van » hieu va, thien van, lieu va
cau luc » cau truc, cau phuc
vai dat » cai dat, va dat, van dat
tu sach » thu sach, su sach, te sach
cam luc » cam xuc
x hoi » xa hoi, o hoi, x ho

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 (nuoc sach)) ky nang x hoi. hieu van ((cam luc) or (cau luc)) va thanh vai dat tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (nuoc sach)) ky nang x hoi. hieu van ((cam luc) OR (cau luc)) va thanh vai dat tren.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (nuoc sach)) ky nang x hoi. hieu van ((cam luc) or (cau luc)) va thanh vai dat tren*.