Perhaps you should try some spelling variations:
lieu van » hieu van, sieu van, lieu nano
cham duc » pham duc, cham soc, pham duy
cau tren » cu tren, dau tren, ca tren
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
hieu ve » hieu va, hieu van
va anh » van anh, va danh, va hanh
anh ve » hanh ve, anh va, anh viet
ve cau » ke cau, va cau, ve cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty nang x ho. ((((hieu ve) or (lieu van))) or (lieu va)) cham duc va anh ve cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang x ho. ((((hieu ve) OR (lieu van))) OR (lieu va)) cham duc va anh ve cau tren.
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang x ho. ((((hieu ve) or (lieu van))) or (lieu va)) cham duc va anh ve cau tren*.