Perhaps you should try some spelling variations:
phu dan » phu san, phu da, phu can
cho hoc » co hoc, khoa hoc
hieu va » lieu va, hieu qua
cam duc » cam xuc, cao duc, pham duc
va tinh » may tinh
tinh di » tinh doi, trinh di, tinh da
dan ky » van ky
ho hoc » hoa hoc, hoi hoc, hoc hoc
va cam » va cham, va cac, va cao
di cua » dai cua, doi cua, de cua
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: phu dan ky nang ((ho hoc) OR (cho hoc)). hieu va cam duc va tinh di cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "phu dan ky nang ((ho hoc) OR (cho hoc)). hieu va cam duc va tinh di cua te".
• Adding a wildcard symbol may retrieve word variants: phu dan ky nang ((ho hoc) OR (cho hoc)). hieu va cam duc va tinh di cua te*.