Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
nhan luc » nang luc
lap tren » la tren, lop tren, tap tren
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
va nhan » van nhan, ca nhan, va phan
hanh va » hang va
ma hoi » mai hoi, xa hoi, ma hoa
luc va » duc va, tuc va, loc va

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 ky nang ma hoi. lieu va nhan luc va ((hanh va) OR (hanh vi)) lap tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky nang ma hoi. lieu va nhan luc va ((hanh va) OR (hanh vi)) lap tren".
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang ma hoi. lieu va nhan luc va ((hanh va) OR (hanh vi)) lap tren*.