Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
nhan luc » nang luc
va nhan » van nhan, ca nhan, va phan
va hanh » van hanh, va thanh, va danh
y lang » o lang, _ lang, tay lang
ha hoi » hoa hoi, ha noi, va hoi
luc va » duc va, tuc va, loc va
vi tu » vi tut, voi tu, vu tu
va tu » va su

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach y lang ((ha hoi) or (xa hoi)). lieu va nhan luc va hanh ((vi tu) OR (va tu)) tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach y lang ((ha hoi) OR (xa hoi)). lieu va nhan luc va hanh ((vi tu) OR (va tu)) tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach y lang ((ha hoi) or (xa hoi)). lieu va nhan luc va hanh ((vi tu) OR (va tu)) tren".
• Adding a wildcard symbol may retrieve word variants: thuat sach y lang ((ha hoi) or (xa hoi)). lieu va nhan luc va hanh ((vi tu) OR (va tu)) tren*.