Perhaps you should try some spelling variations:
thi thuy » thi thu
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
cac xuc » cac nuoc, chat xuc, cac cuoc
thi huu » thi hue
ma hoi » mai hoi, xa hoi, ma hoa
va dau » va dao

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 ky nang ma hoi. lieu va ((cac xuc) or (cam xuc)) va dau ((thi huu) OR (thi thuy)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ma hoi. lieu va ((cac xuc) OR (cam xuc)) va dau ((thi huu) OR (thi thuy)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang ma hoi. lieu va ((cac xuc) or (cam xuc)) va dau ((thi huu) OR (thi thuy)) tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ma hoi. lieu va ((cac xuc) or (cam xuc)) va dau ((thi huu) OR (thi thuy)) tre*.