Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, tu cach
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
te sach » toc sach
xuc ca » xuc cam, xuc cua
ve cac » va cac, vien cac
vi cu » vi su, vi du
vi xu » va xu, ve xu, vi su

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) or (te sach)) ky nang xa hoi. hieu ve cac xuc ca dao ((vi cu) OR (vi xu)) tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky nang xa hoi. hieu ve cac xuc ca dao ((vi cu) OR (vi xu)) tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) ky nang xa hoi. hieu ve cac xuc ca dao ((vi cu) OR (vi xu)) tren".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky nang xa hoi. hieu ve cac xuc ca dao ((vi cu) OR (vi xu)) tren*.