Perhaps you should try some spelling variations:
toc sach » doc sach, thuoc sach, nuoc sach
hoc sach » hoc sinh, hoc cac, hoc anh
nhan luc » nang luc
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
nang xa » nang x, lang xa, nang ma
va nang » van nang, da nang, cam nang
di cua » dai cua, doi cua, de cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc sach) OR (hoc sach)) va nang xa hoi. lieu va ((cham soc) or (nhan luc)) va hanh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (hoc sach)) va nang xa hoi. lieu va ((cham soc) OR (nhan luc)) va hanh di cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc sach) OR (hoc sach)) va nang xa hoi. lieu va ((cham soc) or (nhan luc)) va hanh di cua te".
• Adding a wildcard symbol may retrieve word variants: ((toc sach) OR (hoc sach)) va nang xa hoi. lieu va ((cham soc) or (nhan luc)) va hanh di cua te*.