Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
tu sach » su sach, te sach, tu cach
cau tuc » cau truc, cau tu, cau luc
van thi » van tai, dan thi, van thu
thi cua » thai cua, thi cuc, tri cua
va cau » van cau, va cac, va dau
tuc va » thuc va, truc va, tuc xa
cua su » qua su
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 (thu sach)) ky nang x hoi. lieu va cau tuc va van thi cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky nang x hoi. lieu va cau tuc va van thi cua su.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) ky nang x hoi. lieu va cau tuc va van thi cua su*.