Perhaps you should try some spelling variations:
thuoc sai » thuoc tai, thuoc san, thuoc sach
nang tao » nang cao, sang tao, nang tai
toc sai » toc san, toc dai, toc thai
tao hoi » tao khoi, tao boi, tay hoi
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
duc gia » quoc gia
lap cua » tap cua, lam cua, ap cua
lai cua » dai cua, hai cua, lai chau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc sai) or (thuoc sai)) ky nang tao hoi. hieu ve pham duc gia thanh ((lap cua) OR (lai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sai) OR (thuoc sai)) ky nang tao hoi. hieu ve pham duc gia thanh ((lap cua) OR (lai cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc sai) or (thuoc sai)) ky nang tao hoi. hieu ve pham duc gia thanh ((lap cua) OR (lai cua)) te".
• Adding a wildcard symbol may retrieve word variants: ((toc sai) or (thuoc sai)) ky nang tao hoi. hieu ve pham duc gia thanh ((lap cua) OR (lai cua)) te*.