Perhaps you should try some spelling variations:
thuat sach » thuat san
thuat lanh » thuat lap, thuat san
cham luc » cham soc, nhan luc, cham cuu
va hanh » van hanh, va thanh, va danh
va cham » va chat, va tham
ly nang » ky nang, ly hang, ly vang
cu tren » tu tren, dua tren
y nang » ky nang, v nang, may nang
luc va » duc va, tuc va, loc va
vi cu » vi su, vi xu, vi du

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