Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat song, thuat lanh
pham duy » pham duc
cham duc » pham duc, cham soc, phan duc
vai cua » dai cua, hai cua, lai cua
dan vai » dan va, dan tai, dan vat
hieu ve » hieu va, hieu van
ly nang » ky nang, ly hang, ly vang
va dan » ca dan, va dao, va dau
y nang » ky nang, v nang, may nang
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat san ((y nang) or (ly nang)) ma hoa. hieu ve ((cham duc) OR (pham duy)) va dan vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat san ((y nang) OR (ly nang)) ma hoa. hieu ve ((cham duc) OR (pham duy)) va dan vai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat san ((y nang) or (ly nang)) ma hoa. hieu ve ((cham duc) OR (pham duy)) va dan vai cua te*".