Perhaps you should try some spelling variations:
nang doc » nang luc
van tham » van thanh, van tuan, van chat
hanh lai » hanh lam, hanh tai, thanh lap
chau tre » chay tren, chau tho, cho tre
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
doc hoi » duoc hoi, hoc hoi, doc hai
va tham » va cham, va thanh, va thuat
xuc va » tuc va, luc va, xac 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 ky nang doc hoi. thien ((va tham) OR (van tham)) ((xuc va) or (duc va)) hanh lai chau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang doc hoi. thien ((va tham) OR (van tham)) ((xuc va) OR (duc va)) hanh lai chau tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang doc hoi. thien ((va tham) OR (van tham)) ((xuc va) or (duc va)) hanh lai chau tre*".