Perhaps you should try some spelling variations:
thuoc sai » thuoc tai, thuoc san, thuoc sach
thanh lap » thanh san, phan lap, thanh hai
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
cua tu » cua tuc, cua su, cua cu

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 te) OR (cua tu))~.
• 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 te) OR (cua tu)).
• 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 te) OR (cua tu))".
• 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 te) OR (cua tu))*.