Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cham luc » cham soc, nhan luc, cham cuu
va hanh » van hanh, va thanh, ban hanh
cu tren » dua tren
va danh » va dinh, va dan, dia danh
tu tren » tu truyen, tu tieng, tu trong
nang ma » tang ma, sang ma, nang cao
va cham » va chat, va tham
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa

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 nang ma hoi. lieu va cham luc ((va hanh) OR (va danh)) vi ((cu tren) or (tu tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach y nang ma hoi. lieu va cham luc ((va hanh) OR (va danh)) vi ((cu tren) OR (tu tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach y nang ma hoi. lieu va cham luc ((va hanh) OR (va danh)) vi ((cu tren) or (tu tren))".
• Adding a wildcard symbol may retrieve word variants: thuat sach y nang ma hoi. lieu va cham luc ((va hanh) OR (va danh)) vi ((cu tren) or (tu tren))*.