Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
hanh tai » thanh tai, hang tai, han tai
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
tai cua » thai cua, tai cuc, tri cua
sach ty » sach y, sach tu, sach thu
tuc va » thuc va, truc va, tuc xa
cua te » cua tu
luc va » duc va, loc va
xuc va » duc va, xac va
va cam » va cham, va cac, va cao

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 ty nang xa hoi. hieu va cam ((((xuc va) OR (luc va))) or (tuc va)) hanh tai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ty nang xa hoi. hieu va cam ((((xuc va) OR (luc va))) OR (tuc va)) hanh tai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ty nang xa hoi. hieu va cam ((((xuc va) OR (luc va))) or (tuc va)) hanh tai cua te".
• Adding a wildcard symbol may retrieve word variants: thuat sach ty nang xa hoi. hieu va cam ((((xuc va) OR (luc va))) or (tuc va)) hanh tai cua te*.