Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cham luc » cham soc, nhan luc, cham cuu
va cham » va chat, va tham
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 tut » vi rut
vi tu » voi tu, va tu, vu tu

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